The event during meiosis that lead the males to carry a copy of SRY gene on X chromosome, in absence of Y chromosome. Introduction: The humans have 23 pairs of chromosome. Among this 23 pair, 22 pairs are autosome and one pair is sex chromosome. This pair determines the sex of the sex of the resulting zygote/fetus.

Question

Want to see the full answer?

Answer 1

Question

Chapter 8, Problem 1CTS

Summary Introduction

To analyze:

The event during meiosis that lead the males to carry a copy of SRY gene on X chromosome, in absence of Y chromosome.

Introduction:

The humans have 23 pairs of chromosome. Among this 23 pair, 22 pairs are autosome and one pair is sex chromosome. This pair determines the sex of the sex of the resulting zygote/fetus.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

Most sexual organisms are either male or female though some are hermaphroditic. In human beings and Drosophila (fruitfly), the sex of an individual is determined by the kind of sex chromosomes they possess. Males have two types of chromosomes, a big chromosome X and a small chromosome Y while females have only one kind, 2X or XX. The X and Y chromosomes segregate during the formation of mature spermatozoa (sprematogenesis) so that a mature sperm contains only either X or Y. What is the probability of getting an X-bearing sperm? A Y-bearing sperm? How many kinds of ova as to the kind of sex chromosome present can be produced? Determine the probability of getting a boy or girl. Show your calculations.

Most sexual organisms are either male or female though some are hermaphroditic. In human beings and Drosophila (fruitfly), the sex of an individual is determined by the kind of sex chromosomes they possess. Males have two types of chromosomes, a big chromosome X and a small chromosome Y while females have only one kind, 2X or XX. The X and Y chromosomes segregate during the formation of mature spermatozoa (sprematogenesis) so that a mature sperm contains only either X or Y. What is the probability of getting an X-bearing sperm? A Y-bearing sperm? How many kinds of ova as to the kind of sex chromosome present can be produce? Determine the probability of getting a boy or girl. Show your calculations.

Fill in the cells below showing the NORMAL process of meiosis of the male's sex chromosomes (XY – the X and Y are representing the entire chromosome, and remember X and Y act like a homologous pair). DO NOT show crossing over. prior to meiosis 44 +XY What are the possible normal gametes produce after meiosis division? Identify the possible sex of the offspring if these normal sperm cells are fertilized by the egg cell.