When a gene is carried on the X or y chromosome it is called what?

When a gene is carried on the X or y chromosome it is called what?
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Haemophilia is more common in males because it is a (a) recessive character carried by Y-chromosome (b) dominant character carried by Y-chromosome (c) dominant trait carried by X-chromosome (d) recessive trait carried by X-chromosome.

Description : Haemophilia is more common in males because it is a (a) recessive character carried by Y-chromosome (b) dominant character carried by Y-chromosome (c) dominant trait carried by X-chromosome (d) recessive trait carried by X-chromosome.

Last Answer : (d) recessive trait carried by X-chromosome

.Of a normal couple, half the sons are haemophiliac while half the daughters are carriers. The gene is located on (a) X-chromosome of father (b) Y-chromosome of father (c) one X-chromosome of mother (d) both the X-chromosomes of mother

Description : .Of a normal couple, half the sons are haemophiliac while half the daughters are carriers. The gene is located on (a) X-chromosome of father (b) Y-chromosome of father (c) one X-chromosome of mother (d) both the X-chromosomes of mother

Last Answer : (c) one X-chromosome of mother

Read the statements given below and identify the incorrect statement. a) The human genome contains 3164.7 million nucleotide bases. b) The average gene consists of 30,000 bp c) The total number of genes is estimated at 30,000. d) Chromosome Y has 231 genes e) Less than 2% of the genome codes for proteins.

Description : Read the statements given below and identify the incorrect statement. a) The human genome contains 3164.7 million nucleotide bases. b) The average gene consists of 30,000 bp c) The total number of genes is ... . d) Chromosome Y has 231 genes e) Less than 2% of the genome codes for proteins.

Last Answer : d) Chromosome Y has 231 genes

Down Syndrome, a congenital genetic disorder in human beings, is cased by : (a) a defective recessive gene in homozygous condition (b) an extra x chromosome (c) trisomy of chromosome 18 (d) trisomy of chromosome 21

Description : Down Syndrome, a congenital genetic disorder in human beings, is cased by : (a) a defective recessive gene in homozygous condition (b) an extra x chromosome (c) trisomy of chromosome 18 (d) trisomy of chromosome 21

Last Answer : Ans:(d)

Which type of Mendelian inherited condition results in both genders being affected equally in a vertical pattern? a) Automosomal dominant inheritance An individual who has an autosomal dominant inherited condition carries a gene mutation for that condition on one chromosome of a pair. b) Automosomal recessive inheritance The pattern of inheritance in autosomal recessive inherited conditions is different from that of autosomal dominant inherited conditions in that it is more horizontal than vertical, with relatives of a single generation tending to have the condition. c) X-linked inheritance X-linked conditions may be inherited in families in recessive or dominant patterns.

Description : Which type of Mendelian inherited condition results in both genders being affected equally in a vertical pattern? a) Automosomal dominant inheritance An individual who has an autosomal dominant ... that combine during early embryonic development leading to incomplete closure of the neural tube.

Last Answer : a) Automosomal dominant inheritance An individual who has an autosomal dominant inherited condition carries a gene mutation for that condition on one chromosome of a pair.

How might Mendel's conclusions have differed if he had studied two traits determine by alleles carried on the same chromosome?

Description : How might Mendel's conclusions have differed if he had studied two traits determine by alleles carried on the same chromosome?

Last Answer : He would not have seen segregation and his conclusions would have been invalid.

The following are true : a. the HLA proteins are found within the cytoplasm of the cells b. HLA class I antigens are expressed on all cells with nuclei c. HLA class II antigens presents the virus infected cells to cytotoxic T lymphocytes d. HLA genes are found on chromosome 6 e. HLA tissue typing is carried out in all forms of transplantation to prevent rejection

Description : The following are true : a. the HLA proteins are found within the cytoplasm of the cells b. HLA class I antigens are expressed on all cells with nuclei c. HLA class II antigens presents ... on chromosome 6 e. HLA tissue typing is carried out in all forms of transplantation to prevent rejection

Last Answer : HLA class I antigens are expressed on all cells with nuclei

Specialized transduction is carried out by a. Virulent Phages That Have A Lytic Cycle Of Infection. b. Temperate Phages Carrying A Entire Bacterial Chromosome. c. Temperate Phages That Carry A Segment Of Host Dna. d. Virulent Phages That Swap Dna Segments.

Description : Specialized transduction is carried out by a. Virulent Phages That Have A Lytic Cycle Of Infection. b. Temperate Phages Carrying A Entire Bacterial Chromosome. c. Temperate Phages That Carry A Segment Of Host Dna. d. Virulent Phages That Swap Dna Segments.

Last Answer : c. Temperate Phages That Carry A Segment Of Host Dna.

Put the following structures in order from smallest to biggest, Chromosome, Genome, Nucleotide Base, Codon, Gene, Cell Nucleus?

Description : Put the following structures in order from smallest to biggest, Chromosome, Genome, Nucleotide Base, Codon, Gene, Cell Nucleus?

Last Answer : The order is nitrogenous base, nucleotide, codon, gene, chromosome, nucleus, and cell. :)

If a chromosome is like a book, then a gene is like?

Description : If a chromosome is like a book, then a gene is like?

Last Answer : My dumb a** thought this was a joke until I looked at my options on the questionSo yeah "a specific sentence in the book" was correct I just thought I should share how stupid I am ;)

Hormone which regulate gene expression or chromosome by interation of hormone receptor complex with the genome are

Description : Hormone which regulate gene expression or chromosome by interation of hormone receptor complex with the genome are

Last Answer : Hormone which regulate gene expression or chromosome by interation of hormone receptor complex with the genome are

The human insulin gene located on the short arm of chromosome: (A) 11 (B) 17 (C) 18 (D) 20

Description : The human insulin gene located on the short arm of chromosome: (A) 11 (B) 17 (C) 18 (D) 20

Last Answer : Answer : A

Production of a human protein in bacteria by genetic engineering is possible because (a) the human chromosome can replicate in bacterial cell (b) the mechanism of gene regulation is identical in humans and bacteria (c) bacterial cell can carry out the RNA splicing reactions (d) the genetic code is universal.

Description : Production of a human protein in bacteria by genetic engineering is possible because (a) the human chromosome can replicate in bacterial cell (b) the mechanism of gene regulation is identical in ... ) bacterial cell can carry out the RNA splicing reactions (d) the genetic code is universal.

Last Answer : (d) the genetic code is universal.

A selectable marker is used to (a) help in eliminating the non-transformants, so that the transformants can be regenerated (b) identify the gene for a desired trait in an alien organism (c) select a suitable vector for transformation in a specific crop (d) mark a gene on a chromosome for isolation using restriction enzyme.

Description : A selectable marker is used to (a) help in eliminating the non-transformants, so that the transformants can be regenerated (b) identify the gene for a desired trait in an alien organism (c) ... in a specific crop (d) mark a gene on a chromosome for isolation using restriction enzyme.

Last Answer : (a) help in eliminating the non-transformants, so that the transformants can be regenerated

.Identify the correct order of organisation of genetic material from largest to smallest. (a) Genome, chromosome, gene, nucleotide (b) Chromosome, genome, nucleotide, gene (c) Chromosome, gene, genome, nucleotide (d) Genome, chromosome, nucleotide, gene (

Description : .Identify the correct order of organisation of genetic material from largest to smallest. (a) Genome, chromosome, gene, nucleotide (b) Chromosome, genome, nucleotide, gene (c) Chromosome, gene, genome, nucleotide (d) Genome, chromosome, nucleotide, gene (

Last Answer : (a) Genome, chromosome, gene, nucleotide

In a test cross involving F1 dihybrid flies, more parental-type offspring were produced than the recombinant-type offspring. This indicates (a) the two genes are linked and present on the same chromosome (b) both of the characters are controlled by more than one gene (c) the two genes are located on two different chromosomes (d) chromosomes failed to separate during meiosis.

Description : In a test cross involving F1 dihybrid flies, more parental-type offspring were produced than the recombinant-type offspring. This indicates (a) the two genes are linked and present on the ... two genes are located on two different chromosomes (d) chromosomes failed to separate during meiosis.

Last Answer : (a) the two genes are linked and present on the same chromosome

The frequency of recombination between gene present on the same chromosome as a measure of the distance between genes was explained by (a) Sutton Boveri (b) T.H. Morgan (c) Gregor J.Mendel (d) Alfred Sturtevant.

Description : The frequency of recombination between gene present on the same chromosome as a measure of the distance between genes was explained by (a) Sutton Boveri (b) T.H. Morgan (c) Gregor J.Mendel (d) Alfred Sturtevant.

Last Answer : (d) Alfred Sturtevant.

A gene showing co-dominance has (a) alleles that are recessive to each other (b) both alleles independently expressed in the heterozygote (c) one allele dominant on the other (d) alleles tightly linked on the same chromosome.

Description : A gene showing co-dominance has (a) alleles that are recessive to each other (b) both alleles independently expressed in the heterozygote (c) one allele dominant on the other (d) alleles tightly linked on the same chromosome.

Last Answer : (b) both alleles independently expressed in the heterozygote

When composite transposons are formed A- a small deletion occurs in the transposase gene of an IS element B- a small deletion occurs in the transposase gene of an IS element and plasmid is integrated C- an IS element integrates with another IS element with the help of a plasmid D- two IS elements integrate into a chromosome with only a small distance separating them

Description : When composite transposons are formed A- a small deletion occurs in the transposase gene of an IS element B- a small deletion occurs in the transposase gene of an IS element and plasmid is ... a plasmid D- two IS elements integrate into a chromosome with only a small distance separating them

Last Answer : two IS elements integrate into a chromosome with only a small distance separating them

Nondisjunction of a chromosome results in which of the following diagnoses? a) Down Syndrome When a pair of chromosomes fails to separate completely and creates a sperm or oocyte that contains two copies of a particular chromosome (nondisjunction) Down syndrome results from three number 21 chromosomes. b) Huntingon Disease Huntington disease is one example of a germ-line mutation. c) Duchenne Muscular Dystrophy Duchenne muscular dystrophy, an inherited form of muscular dystrophy, is an example of a genetic caused by structural gene mutations. d) Marphan Syndrome Marphan Syndrome is a genetic condition that may occur in a single family member as a result of spontaneous mutation.

Description : Nondisjunction of a chromosome results in which of the following diagnoses? a) Down Syndrome When a pair of chromosomes fails to separate completely and creates a sperm or oocyte that contains two ... genetic condition that may occur in a single family member as a result of spontaneous mutation.

Last Answer : a) Down Syndrome When a pair of chromosomes fails to separate completely and creates a sperm or oocyte that contains two copies of a particular chromosome (nondisjunction) Down syndrome results from three number 21 chromosomes.

This female American geneticist achieved recognition as one of the world's foremost investigators in cytogenetics, the study of heredity by cellular and genetic methods. In 1951 she discovered that gene fragments in corn could move from chromosome to chromosome, and even from cell to cell. Thirty-two years after this extraordinary work, she was awarded the Nobel Prize in medicine in 1983. Who is this notable woman scientist?

Description : This female American geneticist achieved recognition as one of the world's foremost investigators in cytogenetics, the study of heredity by cellular and genetic methods. In 1951 she discovered that gene ... was awarded the Nobel Prize in medicine in 1983. Who is this notable woman scientist?

Last Answer : ANSWER: (BARBARW) McCLINTOCK

Trials for gene therapy in human beings were first carried out, with considerable success, in a genetic disease called (A) Cystic fibrosis (B) Thalassemia (C) Adenosine deaminase deficiency (D) Lesch-Nyhan syndrome

Description : Trials for gene therapy in human beings were first carried out, with considerable success, in a genetic disease called (A) Cystic fibrosis (B) Thalassemia (C) Adenosine deaminase deficiency (D) Lesch-Nyhan syndrome

Last Answer : Answer : C

A test cross is carried out to (a) determine the genotype of a plant at F2 (b) predict whether two traits are linked (c) assess the number of alleles of a gene (d) determine whether two species or varieties will breed successfully.

Description : A test cross is carried out to (a) determine the genotype of a plant at F2 (b) predict whether two traits are linked (c) assess the number of alleles of a gene (d) determine whether two species or varieties will breed successfully.

Last Answer : (a) determine the genotype of a plant at F2

A child receives an X chromosome from it’s mother and a Y chromosome from it’s father. What is true about this child?

Description : A child receives an X chromosome from it’s mother and a Y chromosome from it’s father. What is true about this child?

Last Answer : it is male

Regarding the human chromosomesa. there are 23 pairs autosomal chromosomes b. the Y chromosome is larger than the X chromosome c. cells containing YO chromosome are not compatible with life d. Barr body is caused by the presence of an inactive X chromosome

Description : Regarding the human chromosomes a. there are 23 pairs autosomal chromosomes b. the Y chromosome is larger than the X chromosome c. cells containing YO chromosome are not compatible with life d. Barr body is caused by the presence of an inactive X chromosome

Last Answer : cells containing YO chromosome are not compatible with life

Which of the following is a correct match? (a) Down’s syndrome - 21st chromosome (b) Sickle cell anaemia - X-chromosome (c) Haemophilia - Y-chromosome (d) Parkinson’s disease - X and Y chromosome

Description : Which of the following is a correct match? (a) Down’s syndrome - 21st chromosome (b) Sickle cell anaemia - X-chromosome (c) Haemophilia - Y-chromosome (d) Parkinson’s disease - X and Y chromosome

Last Answer : a) Down’s syndrome - 21st chromosome

.Down’s syndrome in humans is due to (a) three ‘X’ chromosomes (b) three copies of chromosome 21 (c) monosomy (d) two ‘Y’ chromosomes.

Description : .Down’s syndrome in humans is due to (a) three ‘X’ chromosomes (b) three copies of chromosome 21 (c) monosomy (d) two ‘Y’ chromosomes.

Last Answer : b) three copies of chromosome 21

Select the correct match. (a) Haemophilia – Y linked (b) Phenylketonuria – Autosomal dominant trait(c) Sickle cell anaemia – Autosomal recessive trait,chromosome -11 (d) Thalassemia – X linked

Description : Select the correct match. (a) Haemophilia – Y linked (b) Phenylketonuria – Autosomal dominant trait (c) Sickle cell anaemia – Autosomal recessive trait,chromosome -11 (d) Thalassemia – X linked

Last Answer : (c) Sickle cell anaemia – Autosomal recessive trait,chromosome -11

.Male XX and female XY sometime occur due to (a) deletion (b) transfer of segments in X and Y chromosome (c) aneuploidy (d) hormonal imbalance.

Description : .Male XX and female XY sometime occur due to (a) deletion (b) transfer of segments in X and Y chromosome (c) aneuploidy (d) hormonal imbalance.

Last Answer : (b) transfer of segments in X and Y chromosome

In Drosophila, the sex is determined by (a) the ratio of number of X-chromosome to the sets of autosomes (b) X and Y chromosomes (c) the ratio of pairs of X-chromosomes to the pairs of autosomes (d) whether the egg is fertilized or develops parthenogenetically.

Description : In Drosophila, the sex is determined by (a) the ratio of number of X-chromosome to the sets of autosomes (b) X and Y chromosomes (c) the ratio of pairs of X-chromosomes to the pairs of autosomes (d) whether the egg is fertilized or develops parthenogenetically.

Last Answer : (c) the ratio of pairs of X-chromosomes to the pairs of autosomes

.Which one of the following conditions of the zygotic cell would lead to the birth of a normal human female child? (a) Two X chromosomes (b) Only one Y chromosome (c) Only one X chromosome (d) One X and one Y chromosome

Description : .Which one of the following conditions of the zygotic cell would lead to the birth of a normal human female child? (a) Two X chromosomes (b) Only one Y chromosome (c) Only one X chromosome (d) One X and one Y chromosome

Last Answer : (a) Two X chromosomes

Freshly released human egg has (a) one Y-chromosome (b) one X-chromosome (c) two X-chromosome (d) one X-chromosome and one Y-chromosome.

Description : Freshly released human egg has (a) one Y-chromosome (b) one X-chromosome (c) two X-chromosome (d) one X-chromosome and one Y-chromosome.

Last Answer : (b) one X-chromosome

The earliest experiments on chromosome theory and inheritance were developed by? w) Gregor Mendel x) Jonas Salk y) Charles Sternak z) Robert Oppenheimer

Description : The earliest experiments on chromosome theory and inheritance were developed by? w) Gregor Mendel x) Jonas Salk y) Charles Sternak z) Robert Oppenheimer

Last Answer : ANSWER: W -- GREGOR MENDEL

In which of the branches of chemistry would the development of a theory about how a reaction takes place best be carried o w) analytical x) inorganic y) organic z) physical

Description : In which of the branches of chemistry would the development of a theory about how a reaction takes place best be carried o w) analytical x) inorganic y) organic z) physical

Last Answer : ANSWER: Z -- PHYSICAL

X1 is a 3D form generated from the shape X, using certain 3D operations. It has 14 surfaces in total. The same operations are carried out on shape Y. How many surfaces would the resulting 3D form have?

Description : X1 is a 3D form generated from the shape X, using certain 3D operations. It has 14 surfaces in total. The same operations are carried out on shape Y. How many surfaces would the resulting 3D form have?

Last Answer : 20

any disorder associated with the y chromosome _____. -General Knowledge

Description : any disorder associated with the y chromosome _____. -General Knowledge

Last Answer : Any disorder associated with the Y chromosome cannot be passed on to the female offspring.

The genes, which remain confined to differential region of ‘Y’ chromosome, are: (a) Autosomal genes (b) Holandric genes (c) Sex linked genes (d) Mutant genes

Description : The genes, which remain confined to differential region of ‘Y’ chromosome, are: (a) Autosomal genes (b) Holandric genes (c) Sex linked genes (d) Mutant genes

Last Answer : Ans. ((b))

The colour blindness is more likely to occur in males than in females because (a) the Y-chromosome of males have the genes for distinguishing colours (b) genes for characters are located on the sex- chromosomes (c) the trait is dominant in males and recessive in females (d) none of these.

Description : The colour blindness is more likely to occur in males than in females because (a) the Y-chromosome of males have the genes for distinguishing colours (b) genes for characters are located on the sex- chromosomes (c) the trait is dominant in males and recessive in females (d) none of these.

Last Answer : (b) genes for characters are located on the sex- chromosomes

The genes, which remain confined to differential region of Y-chromosome, are (a) autosomal genes (b) holandric genes (c) completely sex-linked genes (d) mutant genes.

Description : The genes, which remain confined to differential region of Y-chromosome, are (a) autosomal genes (b) holandric genes (c) completely sex-linked genes (d) mutant genes.

Last Answer : b) holandric genes

.In Drosophila, the XXY condition leads to femaleness whereas in human beings the same condition leads to Klinefelter’s syndrome in male. It proves (a) in human beings Y chromosome is active in sex determination (b) Y chromosome is active in sex determination in both human beings and Drosophila (c) in Drosophila Y chromosome decides femaleness (d) Y chromosome of man have genes for syndrome.

Description : .In Drosophila, the XXY condition leads to femaleness whereas in human beings the same condition leads to Klinefelter's syndrome in male. It proves (a) in human beings Y chromosome is active in ... (c) in Drosophila Y chromosome decides femaleness (d) Y chromosome of man have genes for syndrome.

Last Answer : (a) in human beings Y chromosome is active in sex determination

Cri-du-chat syndrome in humans is caused by the (a) trisomy of 21st chromosome (b) fertilisation of an XX egg by a normal Y-bearing sperm (c) loss of half of the short arm of chromosome 5 (d) loss of half of the long arm of chromosome 5.

Description : Cri-du-chat syndrome in humans is caused by the (a) trisomy of 21st chromosome (b) fertilisation of an XX egg by a normal Y-bearing sperm (c) loss of half of the short arm of chromosome 5 (d) loss of half of the long arm of chromosome 5.

Last Answer : (c) loss of half of the short arm of chromosome 5

Haemophilia is characterised by:** A. Daughters are affected from their carrier fathers B. Present on “y” chromosome C. Hemarthrosis is a common finding D. Deficiency of factor VII E. Neutrophil defect

Description : Haemophilia is characterised by:** A. Daughters are affected from their carrier fathers B. Present on “y” chromosome C. Hemarthrosis is a common finding D. Deficiency of factor VII E. Neutrophil defect

Last Answer : C. Hemarthrosis is a common finding

2. A human cell containing 22 autosomes and a Y chromosome is probably a a) somatic cell of male b) sperm cell c) somatic cell of female d) unfertilized egg cell

Description : 2. A human cell containing 22 autosomes and a Y chromosome is probably a a) somatic cell of male b) sperm cell c) somatic cell of female d) unfertilized egg cell

Last Answer : b) sperm cell

Is color blindness a trait controlled by a dominant allele on the x chromosome?

Description : Is color blindness a trait controlled by a dominant allele on the x chromosome?

Last Answer : Need answer

What gender inherits the x chromosome?

Description : What gender inherits the x chromosome?

Last Answer : In humans BOTH genders inherit an X chromosome. However ONLY themale inherits a Y chromosome.

Which causes the presence of an extra X- chromosome in male?

Description : Which causes the presence of an extra X- chromosome in male?

Last Answer : Klinefelter's syndrome

True statements about chromosome include: a. 23 chromosomes are found in germinal cells b. in female only one chromosome is activated c. the Barr body is due to inactivated X chromosome e. all above

Description : True statements about chromosome include: a. 23 chromosomes are found in germinal cells b. in female only one chromosome is activated c. the Barr body is due to inactivated X chromosome e. all above

Last Answer : all above

An abnormal human male phenotype involving an extra X-chromosome (XXY) is a case of (a) Edward’s syndrome (b) Klinefelter’s syndrome (c) intersex (d) Down’s syndrome.

Description : An abnormal human male phenotype involving an extra X-chromosome (XXY) is a case of (a) Edward’s syndrome (b) Klinefelter’s syndrome (c) intersex (d) Down’s syndrome.

Last Answer : (b) Klinefelter’s syndrome

.In which of the following diseases, the man has an extra X-chromosome? (a) Turner’s syndrome (b) Klinefelter’s syndrome (c) Down’s syndrome (d) Haemophilia

Description : .In which of the following diseases, the man has an extra X-chromosome? (a) Turner’s syndrome (b) Klinefelter’s syndrome (c) Down’s syndrome (d) Haemophilia

Last Answer : (b) Klinefelter’s syndrome

The recessive genes located on X-chromosome humans are always (a) lethal (b) sub-lethal (c) expressed in males (d) expressed in females.

Description : The recessive genes located on X-chromosome humans are always (a) lethal (b) sub-lethal (c) expressed in males (d) expressed in females.

Last Answer : (c) expressed in males