T or F XX sex reversed individuals have a male phenotype, and are infertile 4. D
ID: 266437 • Letter: T
Question
T or F XX sex reversed individuals have a male phenotype, and are infertile
4. During meiosis in the oocyte, which of the following occurs?
Oocytes in Graafian follicles resume meiosis and extrude the second polar body prior to ovulation
Crossing over occurs during prophase of the second meiotic division, after fertilization has occurred
Oocytes, arrested in MI, resume meiosis under the influence of LH to produce two haploid daughter cells of unequal size
None of the above
6. Capacitation is required for the following reasons:
To permit sperm to fully mature before uniting with an oocyte
To remove seminal inhibitors from the sperm surface and cholesterol from the plasma membrane in anticipation of the acrosome reaction
To acquire superficial proteins from the epididymis and factors which are important for motility
None of the above
8. T or F Sperm removed directly from the testis and placed in close proximity to the oocyte are not capable of normal fertilization
9. T or F Hirsute women are characterized by male pattern hair deposition
10. What is the chromosome number of a human oocyte in a mature Graafian follicle? What is the chromosome number of a human oocyte in a primary follicle?
Explanation / Answer
The following statement is true. XX sex reversed individuals have a male phenotype but are infertile. It is a kind of human genetic disease which is characterised by smaller development of the reproductive organs, late onset of puberty etc. While the other form of reversal also includes normal development of external organs while still contributing to infertility, due to under-development of internal structures.. They can be SRY positive and negative.
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