1 . Which statement about Punnett Squares is true? Punnett Squares predict the p
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Question
1. Which statement about Punnett Squares is true?
Punnett Squares predict the probability of different genotypes in offspring, given the original genotypes of the parents.
Punnett Squares can show us the potential genotypes for autosomal traits, but sex-linked traits are too complex to be illustrated with a Punnett Square.
Punnett Squares are best utilized for polygenic, not monogenic traits.
Punnett Squares are a visual representation of genetic recombination in mitosis.
Punnett Squares show the exact genotypes of every four offspring.
2. Which of the following statements is true of sex-linked traits on the X chromosome?
Only females have sex-linked traits on the X chromosome.
Only females pass on X chromosomes.
Males always inherit these traits from their fathers.
Males always inherit these traits from their mothers.
Females are considered hemizygous for sex-linked traits on the X-chromosome.
A.Punnett Squares predict the probability of different genotypes in offspring, given the original genotypes of the parents.
B.Punnett Squares can show us the potential genotypes for autosomal traits, but sex-linked traits are too complex to be illustrated with a Punnett Square.
C.Punnett Squares are best utilized for polygenic, not monogenic traits.
D.Punnett Squares are a visual representation of genetic recombination in mitosis.
E.Punnett Squares show the exact genotypes of every four offspring.
Explanation / Answer
1) The distribution of genes in the offspring defined by probability. In a Punnett square, the alleles from both parents written across the top or on the left side. Probability of different genotypes are predicted with the help of genotypes of parents written across the top or on the left side.
So answer is: Punnett Squares predict the probability of different genotypes in offspring, given the original genotypes of the parents.
2) X-linked inheritance means that the gene causing the trait is located on the X chromosome. Females have two X chromosomes and males have one X and one Y.
Males always inherit these traits from their mothers.
As if male inherit X chromosome from father then from where he get Y chromosome as females has 2 X
So male XY inherit Y from male and X from female.
So answer is : Males always inherit these traits from their mothers.
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