What is a sex chromosome? -Biology

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Answer :

Sex chromosome is a chromosome that operates in the sex-determining mechanism of a species. Many animals have two different types of sex chromosomes. For example, in human there is a large X chromosome and a much smaller Y chromosome.

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Description : Sex determination of child is done by whose chromosome? -General Knowledge

Last Answer : The answer is 'Father'

Description : Sex determination of child is done by whose chromosome? -General Knowledge

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Description : Sex determination of child is done by whose chromosome? -General Knowledge

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Description : What is a sex chromosome ?

Last Answer : The chromosome by which the sex of an organism is determined is called sex chromosome.

Description : What is a sex chromosome ?

Last Answer : Chromosomes other than autosomes that help determine the sex of an organism are called allozomes or sex-chromosomes.

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

Description : $ The term chromosome was introduced by Waldeyer. ! Sex chromosomes are also called Heterosomes.

Last Answer : $ The term chromosome was introduced by Waldeyer. ! Sex chromosomes are also called Heterosomes. A. If both ... wrong D. If both As and R are wrong.

Description : How can a person have a sex chromosome that differs from their external appearance?

Last Answer : 1) Mosaics (more than one set of genes in one body).2) Any type of hormone error that produces hormones that don'twork right.

Description : In humans have a larger sex chromosome?

Last Answer : Feel Free to Answer

Description : What ia the difference between an autosome and a sex chromosome?

Last Answer : An autosome is a gene that determines what a species looks like no mater the sex. The sex chromosome has genes on it that determines sex and the characterics that go with that sex.

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))

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

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

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

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Last Answer : a) sex-chromosome

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

Description : . Select the incorrect statement. (a) Human males have one of their sex-chromosome much shorter than other. (b) Male fruit fly is heterogametic. (c) In male grasshoppers, 50% of sperms have no sex-chromosome. (d) In domesticated fowls, sex of progeny depends on the type of sperm rather than egg.

Last Answer : (d) In domesticated fowls, sex of progeny depends on the type of sperm rather than egg.

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Description : If Mendel had studied the seven traits using a plant with 12 chromosomes instead of 14, in what way would his interpretation have been different? (a) He would not have discovered the law of ... c) He could have mapped the chromosome. (d) He would have discovered blending or incomplete dominance.

Last Answer : He would not have discovered the law of

Description : Sex determination of child is done by whose chromosome?

Last Answer : Father

Description : 3. Sex chromosome of a female bird are represented by (a ) XO (b)ZW (c)XY (d)ZZ

Last Answer : (b)ZW

Description : 1. Sex determination of child is done by whose chromosome? 2. Who is authorised to decide over a dispute regarding disqualification of a member of Parliament? 3. Who firstly demonstrated ... of bargets, coasters and dredgers? 20. In which country was Buddhism first propogated outside India?

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Description : What would be the ratio of chromosome number between an egg and its zygote? How is the sperm genetically different from the egg? -Biology

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Description : Is the chromosome number of zygote, embryonal cells and adult of a particular organism always constant? How is the constancy maintained in these three stages? -Biology

Last Answer : How is the constancy maintained in these three stages? Answer. Yes, zygote, embryonic cell and adult of a particular organism always constant have constant chromosome number. Sexual reproduction includes gamete formation through meiosis and fertilization.

Description : What is the feature of a metacentric chromosome? -Biology

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Description : What is referred to as satellite chromosome? -Biology

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Description : Differences between a bacterial chromosome and a plasmid? -Biology

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Description : Can anyone tell m were the actual chromosome multiplication takes place during mitosis... The ncert book mentions only dna -Biology

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Description : Do you think Mendel's law of inheritance would have been different if the characters that he chose were located on the same chromosome? -Biology

Last Answer : If Mendel choose characters that were located on the same chromosome then Mendel would not find the law of independent assortment.

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Description : Do genetic combination of mothers play a significant role in determining the sex of new born? -Biology

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Last Answer : Mechanism of Sex Determination in Human Beings: In human beings, the sex of the individual is genetically determined.Sex determination is the process by which sex of a new born individual can be ... happens at fertilisation. Thus, father is responsible for the determination of the sex of a child.

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Description : What are the functions of the sex hormones? -Biology

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Description : How is sex determined in human beings? -Biology

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Description : Why do sex linked traits appear more in males than in females? -Biology

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Description : Why do sex linked traits appear more in males than in females? -Biology

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