Which one of the following conditions correctly describes the manner of determining the sex? (a) Homozygous sex chromosomes (ZZ) determine female sex in birds. (b) XO type of sex chromosomes determine male sex in grasshopper. (c) XO condition in humans as found in Turner’s syndrome, determines female sex. (d) Homozygous sex chromosomes (XX) produce male in Drosophila.

Which one of the following conditions correctly
describes the manner of determining the sex?
(a) Homozygous sex chromosomes (ZZ) determine
female sex in birds.
(b) XO type of sex chromosomes determine male
sex in grasshopper.
(c) XO condition in humans as found in Turner’s
syndrome, determines female sex.
(d) Homozygous sex chromosomes (XX)
produce male in Drosophila.
by

1 Answer

Answer :

(b) XO type of sex chromosomes determine male
sex in grasshopper.
by

Related questions

.A human female with Turner’s syndrome (a) has 45 chromosomes with XO (b) has one additional X chromosome (c) exhibits male characters (d) is able to produce children with normal husband.

Description : .A human female with Turner’s syndrome (a) has 45 chromosomes with XO (b) has one additional X chromosome (c) exhibits male characters (d) is able to produce children with normal husband.

Last Answer : (a) has 45 chromosomes with XO

25. The mechanism of ‘sex determination’ in birds is ... f) XX -XY b) ZZ -ZW c) ZZ -WW d) XX -XO

Description : 25. The mechanism of ‘sex determination’ in birds is ... f) XX -XY b) ZZ -ZW c) ZZ -WW d) XX -XO

Last Answer : b) ZZ -ZW

5. The mechanism of ‘sex determination’ in birds is ... c) XX -XY b) ZZ -ZW c) ZZ -WW d) XX -XO

Description : 5. The mechanism of ‘sex determination’ in birds is ... c) XX -XY b) ZZ -ZW c) ZZ -WW d) XX -XO

Last Answer : b) ZZ -ZW

In Down’s syndrome of a male child, the sex complement is (a) XO (b) XY (c) XX (d) XXY.

Description : In Down’s syndrome of a male child, the sex complement is (a) XO (b) XY (c) XX (d) XXY.

Last Answer : (b) XY

.In human beings 45 chromosomes/single X/XO abnormality causes (a) Down’s syndrome (b) Kinefelter’s syndrome (c) Turner’s syndrome (d) Edward’s syndrome

Description : .In human beings 45 chromosomes/single X/XO abnormality causes (a) Down’s syndrome (b) Kinefelter’s syndrome (c) Turner’s syndrome (d) Edward’s syndrome

Last Answer : (c) Turner’s syndrome

.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

.Which one of the following conditions in humans is correctly matched with its chromosomal abnormality/linkage? (a) Erythroblastosis fetalis - X-linked (b) Down’s syndrome - 44 autosomes + XO (c) Klinefelter’s syndrome - 44 autosomes + XXY (d) Colour blindness - Y-linked

Description : .Which one of the following conditions in humans is correctly matched with its chromosomal abnormality/linkage? (a) Erythroblastosis fetalis - X-linked (b) Down’s syndrome - 44 autosomes + XO (c) Klinefelter’s syndrome - 44 autosomes + XXY (d) Colour blindness - Y-linked

Last Answer : (c) Klinefelter’s syndrome - 44 autosomes + XXY

.A person with the sex chromosomes XXY suffers from (a) gynandromorphism (b) Klinefelter’s syndrome (c) Down’s syndrome (d) Turner’s syndrome.

Description : .A person with the sex chromosomes XXY suffers from (a) gynandromorphism (b) Klinefelter’s syndrome (c) Down’s syndrome (d) Turner’s syndrome.

Last Answer : (b) Klinefelter’s syndrome

Which of the following pairs is wrongly matched? (a) Starch synthesis in pea : Multiple alleles (b) ABO blood grouping : Co-dominance (c) XO type sex determination: Grasshopper (d) T.H. Morgan : Linkage

Description : Which of the following pairs is wrongly matched? (a) Starch synthesis in pea : Multiple alleles (b) ABO blood grouping : Co-dominance (c) XO type sex determination: Grasshopper (d) T.H. Morgan : Linkage

Last Answer : (a) Starch synthesis in pea : Multiple alleles

Which of the following pairs in wrongly matched ? (1) Starch synthesis in pea : Multiple alleles (2) ABO blood grouping : Co-dominance (3) XO type sex determination : Grasshopper (4) T.H. Morgan : Linkage

Description : Which of the following pairs in wrongly matched ? (1) Starch synthesis in pea : Multiple alleles (2) ABO blood grouping : Co-dominance (3) XO type sex determination : Grasshopper (4) T.H. Morgan : Linkage

Last Answer : (1) Starch synthesis in pea : Multiple alleles

XX-XO sex chromosome complement occurs in

Description : XX-XO sex chromosome complement occurs in

Last Answer : XX-XO sex chromosome complement occurs in A. Cockrocach B. Hony bee C. Chimpanzee D. Human female

5. Klinefelters syndrome has the genetic make up (a) 44 autosomes + xxy(b) 44 autosomes + xo (c) 45 autosomes + xx (d) 45 autosomes + xy

Description : 5. Klinefelters syndrome has the genetic make up (a) 44 autosomes + xxy(b) 44 autosomes + xo (c) 45 autosomes + xx (d) 45 autosomes + xy

Last Answer : (a) 44 autosomes + xxy

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

A woman with 47 chromosomes due to three copies of chromosome 21 is characterised by (a) superfemaleness (b) triploidy (c) Turner’s syndrome (d) Down’s syndrome.

Description : A woman with 47 chromosomes due to three copies of chromosome 21 is characterised by (a) superfemaleness (b) triploidy (c) Turner’s syndrome (d) Down’s syndrome.

Last Answer : (d) Down’s syndrome.

An individual with three X chromosomes is likely t be: a) a clinically normal female b) an abnormal female c) a Turner's individual d) a Kleinfelter's individual

Description : An individual with three X chromosomes is likely t be: a) a clinically normal female b) an abnormal female c) a Turner's individual d) a Kleinfelter's individual

Last Answer : ANSWER: B -- AN ABNORMAL FEMALE 

Which chromosomal combination is responsible for maleness in man? (1) XO (2) XXX (3) XX (4) XY

Description : Which chromosomal combination is responsible for maleness in man? (1) XO (2) XXX (3) XX (4) XY

Last Answer : Explanation: In the XY sex-determination system, the female-provided ovum contributes an X chromosome and the male-provided sperm contributes either an X chromosome or a Y chromosome, resulting in female (XX) or male (XY) offspring, respectively.

Which chromosomal combination is responsible for maleness in man ? (1) XO (2) XXX (3) XX (4) XY

Description : Which chromosomal combination is responsible for maleness in man ? (1) XO (2) XXX (3) XX (4) XY

Last Answer : XY

Which best describes the sex chromosomes in humans?

Description : Which best describes the sex chromosomes in humans?

Last Answer : Humans have 22 pairs of homologous non-sex chromosomes (called autosomes), and one pair of sex chromosomes, making a total of 46 chromosomes in a genetically normal human.Each member of a pair is inherited ... a homologous pair of sex chromosomes (two Xs), while males have an X and a Y chromosome.

Chromosomes found in the salivary glands of Drosophila are

Description : Chromosomes found in the salivary glands of Drosophila are

Last Answer : Chromosomes found in the salivary glands of Drosophila are A. Polytene B. Supernumerary C. Lampbrush D. B -chromosome

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)

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

Study the pedigree chart of a certain family given below and select the correct conclusion which can be drawn for the character. (a) The female parent is heterozygous. (b) The parents could not have had a normal daughter for this character. (c) The trait under study could not be colour blindness. (d) The male parent is homozygous dominant.

Description : Study the pedigree chart of a certain family given below and select the correct conclusion which can be drawn for the character. (a) The female parent is heterozygous. (b) The parents could not ... The trait under study could not be colour blindness. (d) The male parent is homozygous dominant.

Last Answer : (a) The female parent is heterozygous.

What determines the sex of a child? (1) Chromosomes of the father (2) Chromosomes of the mother (3) Rh factor of the parents (4) Blood group of the father

Description : What determines the sex of a child? (1) Chromosomes of the father (2) Chromosomes of the mother (3) Rh factor of the parents (4) Blood group of the father

Last Answer : (1) Chromosomes of the father Explanation: In humans and several other species of animals, the father determines the sex of the child. In the XV sex-determination system, the female-provided ovum ... X chromosome or a Y chromosome, resulting in female (XX) or male (XY) offspring, respectively.

What determines the sex of a child ? (1) Chromosomes of the father (2) Chromosomes of the mother (3) Rh factor of the parents (4) Blood group of the father

Description : What determines the sex of a child ? (1) Chromosomes of the father (2) Chromosomes of the mother (3) Rh factor of the parents (4) Blood group of the father

Last Answer : Chromosomes of the father

Which correctly describes a difference between the male and female reproductive systems?

Description : Which correctly describes a difference between the male and female reproductive systems?

Last Answer : Females produce fewer gametes.

.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

How you can determine whether or not the black parent is homozygous or heterozygous for the condition?

Description : How you can determine whether or not the black parent is homozygous or heterozygous for the condition?

Last Answer : You are not giving enough information to solve this. But, in practice, further crosses will give some clue if the same results occur. If that happens, then the parent in homozygous dominant.

Down’s syndrome is due to (a) crossing over (b) linkage (c) sex-linked inheritance (d) non-disjunction of chromosomes.

Description : Down’s syndrome is due to (a) crossing over (b) linkage (c) sex-linked inheritance (d) non-disjunction of chromosomes.

Last Answer : (d) non-disjunction of chromosomes.

Clomiphene citrate is indicated for the following condition/conditions: A. Female infertility due to anovular cycles B. Male infertility due to oligozoospermia C. Endometriosis D. Both 'A' and 'B'

Description : Clomiphene citrate is indicated for the following condition/conditions: A. Female infertility due to anovular cycles B. Male infertility due to oligozoospermia C. Endometriosis D. Both 'A' and 'B'

Last Answer : D. Both 'A' and 'B'

Webbed neck is a characteristic of – (1) Down's syndrome (2) Turner's syndrome (3) Klinefelter's syndrome (4) Cri-du-chat syndrome

Description : Webbed neck is a characteristic of – (1) Down's syndrome (2) Turner's syndrome (3) Klinefelter's syndrome (4) Cri-du-chat syndrome

Last Answer : (2) Turner's syndrome Explanation: A webbed neck, or pterygium colli deformity, is a congenital skin fold that runs along the sides of the neck down to the shouldersit is a feature of Turner ... Syndrome (TS) is a condition in which a female is partly or completely missing an X chromosome.

.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

Mongolian Idiocy due to trisomy in 21st chromsome is called (a) Down’s syndrome (b) Turner’s syndrome (c) Klinefelter’s syndrome (d) Triple X syndrome

Description : Mongolian Idiocy due to trisomy in 21st chromsome is called (a) Down’s syndrome (b) Turner’s syndrome (c) Klinefelter’s syndrome (d) Triple X syndrome

Last Answer : (a) Down’s syndrome

.A disease caused by an autosomal primary non- disjunction is (a) Klinefelter’s syndrome (b) Turner’s syndrome (c) Sickle cell anaemia (d) Down’s syndrome.

Description : .A disease caused by an autosomal primary non- disjunction is (a) Klinefelter’s syndrome (b) Turner’s syndrome (c) Sickle cell anaemia (d) Down’s syndrome.

Last Answer : (d) Down’s syndrome.

What is the genetic disorder in which an individual has an overall masculine development, gynaecomastia and is sterile? (a) Down’s syndrome (b) Turner’s syndrome (c) Klinefelter’s syndrome (d) Edward syndrome

Description : What is the genetic disorder in which an individual has an overall masculine development, gynaecomastia and is sterile? (a) Down’s syndrome (b) Turner’s syndrome (c) Klinefelter’s syndrome (d) Edward syndrome

Last Answer : Klinefelter’s syndrome

A 28 year old patient complains of amenorrhea after having dilatation and curettage. The most likely diagnosis is: a) Kallman’s Syndrome. b) Turner’s Syndrome. c) Asherman’s Syndrome. d) Pelvic inflammatory disease. e) Anorexia nervosa.

Description : A 28 year old patient complains of amenorrhea after having dilatation and curettage. The most likely diagnosis is: a) Kallman’s Syndrome. b) Turner’s Syndrome. c) Asherman’s Syndrome. d) Pelvic inflammatory disease. e) Anorexia nervosa.

Last Answer : c) Asherman’s Syndrome.

10. Which of the following symbols represent a Turner’s syndrome a) AAXO b) AAXY c) AAXXY d) AAXYY

Description : 10. Which of the following symbols represent a Turner’s syndrome a) AAXO b) AAXY c) AAXXY d) AAXYY

Last Answer : a) AAXO

A disease caused by an autosomal primary non- disjunction is : (1) Klinefelter's Syndrome(2) Turner's Syndrome (3) Sickel Cell Anemia (4) Down's Syndrome

Description : A disease caused by an autosomal primary non- disjunction is : (1) Klinefelter's Syndrome(2) Turner's Syndrome (3) Sickel Cell Anemia (4) Down's Syndrome

Last Answer : (4) Down's Syndrome

Webbed neck is a characteristic of (1) Down’s syndrome (2) Turner’s syndrome (3) Klinefelter’s syndrome (4) Cri–du–chat syndrome

Description : Webbed neck is a characteristic of (1) Down’s syndrome (2) Turner’s syndrome (3) Klinefelter’s syndrome (4) Cri–du–chat syndrome

Last Answer : Turner’s syndrome

What chromosomes determine the sex of the child?

Description : What chromosomes determine the sex of the child?

Last Answer : the males X and Y chromosomes and the females X chromosomes

.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

A genetically diseased father (male) marries with a normal female and gives birth to 3 carrier girls and 5 normal sons. It may be which type of genetic disease? (a) Sex-influenced disease (b) Blood group inheritance disease (c) Sex-linked disease (d) Sex-recessive disease

Description : A genetically diseased father (male) marries with a normal female and gives birth to 3 carrier girls and 5 normal sons. It may be which type of genetic disease? (a) Sex-influenced disease (b) Blood group inheritance disease (c) Sex-linked disease (d) Sex-recessive disease

Last Answer : (c) Sex-linked disease

Homozygous refers to: a) similar types of chromosomes b) having similar functions on an evolutionary basis c) particles in solution that are inseparable d) having identical alleles for a given gene

Description : Homozygous refers to: a) similar types of chromosomes b) having similar functions on an evolutionary basis c) particles in solution that are inseparable d) having identical alleles for a given gene

Last Answer : ANSWER: D -- HAVING IDENTICAL ALLELES FOR A GIVEN GENE

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.

The testes in humans are situated outside the abdominal cavity inside a pouch called scrotum. The purpose served is for (a) maintaining the scrotal temperature lower than the internal body temperature (b) escaping any possible compression by the visceral organs (c) providing more space for the growth of epididymis (d) providing a secondary sexual feature for exhibiting the male sex.

Description : The testes in humans are situated outside the abdominal cavity inside a pouch called scrotum. The purpose served is for (a) maintaining the scrotal temperature lower than the internal body ... growth of epididymis (d) providing a secondary sexual feature for exhibiting the male sex.

Last Answer : (a) maintaining the scrotal temperature lower than the internal body temperature

Male and female sex hormone respectivley which stimulate development of sex organ, sexual behaviour, gametogensis are

Description : Male and female sex hormone respectivley which stimulate development of sex organ, sexual behaviour, gametogensis are

Last Answer : Male and female sex hormone respectivley which stimulate development of sex organ, sexual behaviour, gametogensis are

Sex refers to the social aspects of differences between male and female.

Description : Sex refers to the social aspects of differences between male and female.

Last Answer : Correct underlined words and complete the sentence : Sex refers to the social aspects of differences between male and female.

What is meant by ‘sex’? a. Fact of being either male or female, b. Biological and physiological characteristics that define men and women. c. Anatomical and physiological characteristics that signify the biological maleness and femaleness of an individual. d. All of the above.

Description : What is meant by ‘sex’? a. Fact of being either male or female, b. Biological and physiological characteristics that define men and women. c. Anatomical and physiological characteristics that signify the biological maleness and femaleness of an individual. d. All of the above.

Last Answer : d. All of the above.

Biological characteristics distinguishing male from female is called--- a) Heterosexuality b) b) Gender c) Sex d) Homosexuality

Description : Biological characteristics distinguishing male from female is called--- a) Heterosexuality b) b) Gender c) Sex d) Homosexuality

Last Answer : c) Sex

The ‘double standard’ normally refers to the difference in social attitude towards [A] Homosexual and heterosexual sex activity [B] Child and Adult sexual activity [C] Male and female sexual activity [D] Working class and middle class sexual activity

Description : The ‘double standard’ normally refers to the difference in social attitude towards [A] Homosexual and heterosexual sex activity [B] Child and Adult sexual activity [C] Male and female sexual activity [D] Working class and middle class sexual activity

Last Answer : [C] Male and female sexual activity

What will you look for to identify the sex of the following? (a) Female Ascaris-sharply curved posterior end (b) Male frog- a copulatory pad on the first digit of the hind limb (c) Female cockroach-anal cerci (d) Male shark-claspers borne on pelvic fins

Description : What will you look for to identify the sex of the following? (a) Female Ascaris-sharply curved posterior end (b) Male frog- a copulatory pad on the first digit of the hind limb (c) Female cockroach-anal cerci (d) Male shark-claspers borne on pelvic fins

Last Answer : (d) Male shark-claspers borne on pelvic fins