Write in the best answer for each During anaphase II of meio

Write in the best answer for each. During anaphase II of meiosis, move in opposite directions. Each human sperm normally has how many sex chromosomes? the cell that begins meiosis to produce an oocyte is called a The process of making a chain of amino acids (polypeptide) based on the sequence within an RNA molecule is called Suppose that an individual of some beetle species has 2N=12 and the genotype aaeeGGtt. If one cell from this organism does mitosis one time, how many chromosomes will be in each cell produced? What will be the genotype of each of these cells Hemophilia in humans is inherited as a sex-linked recessive trait. Consider the following statement: \"If a woman shows the disorder hemophilia, her father must have also had hemophilia. Also, if she marries a normal male, half of their sons will be normal and half of her sons will have hemophilia.\" Evaluate whether this statement in all its parts is true and explain your answer.

Solution

17

a)SISTER CHROMATIDS OF Homologous chromosomes

b) two chromosomes (X and Y chromosomes)

c) Female germ cells

d) Translation

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18. Number of chromosomes = 2N=12

Genotype= aaeeGGtt

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Woman a-affected – MEANS-- Genotype= X^h X^h

ⁿnormal male --------- Genotype= X Y

X^h

X^h

X

X^h X   

CARRIER

FEMALE

X^h X

CARRIER FEMALE

Y

X^h Y        

   AFFECTED MALE

X^h Y

AFFECTED MALE

HENCE GIEVEN STATEMENT IS WRONG

ONE X LINKED RECESSIVE ALLEL IS ENOUG FOR EXPRESSION IN MALES

WHERE AS

TWO X LINKED RECESSIVE ALLEL ARE REQUIRED FOR EXPRESSION IN FEMALES

	Xh	Xh
X	Xh X    CARRIER FEMALE	Xh X CARRIER FEMALE
Y	Xh Y            AFFECTED MALE	Xh Y AFFECTED MALE