Which of the following statements about chromosomes is true? A) twenty-two of the 23 pairs of chromosomes are sex chromosomesB) The sex of a new organism is determined by whether an X-bearing or Y-bearing sperm fertilizes the ovumC) The Y chromosome is quite large, whereas the X is short and carries little genetic material

Question

Araceli Mercado

Social Studies

24 January, 03:52

Which of the following statements about chromosomes is true? A) twenty-two of the 23 pairs of chromosomes are sex chromosomesB) The sex of a new organism is determined by whether an X-bearing or Y-bearing sperm fertilizes the ovumC) The Y chromosome is quite large, whereas the X is short and carries little genetic material

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Answers (1)

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Ernest Moody · Answer 1

B) The sex of a new organism is determined by whether an X-bearing or Y-bearing sperm fertilizes the ovum

Explanation:

The X and Y chromosomes determines the sex of mammals. Men have 46XY and women have 46XX chromosomes and these chromosomes are in pairs of 23. The female have XX, if the egg receives another X from the male sperm it will result in XX and a female is formed. But if the egg receives Y chromosome from the sperm XY if formed and that is male. The Y chromosome is the carrier of the gene that forms the testis.