Multiple Choice
Which of the following chromosome pairings would a normal female duck have?
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3. Extensions to Mendelian Inheritance
Sex Chromosome
Multiple Choice
Which of the following karyotypes represents the addition of normal male (XY) cat DNA?
A
One X chromosome and no Y chromosome
B
Two Y chromosomes and one X chromosome
C
Two X chromosomes and no Y chromosome
D
An autosomal chromosome pair plus one X and one Y chromosome
Verified step by step guidance1
Understand that a normal male cat has one X chromosome and one Y chromosome, represented as XY, along with autosomal chromosome pairs.
Recall that autosomes are chromosome pairs that are not sex chromosomes; they are present in pairs regardless of sex.
Analyze each karyotype option to see if it includes one X and one Y chromosome along with autosomal pairs.
Recognize that the correct karyotype representing the addition of normal male (XY) cat DNA must have one X chromosome, one Y chromosome, and the full set of autosomal chromosome pairs.
Conclude that the karyotype with an autosomal chromosome pair plus one X and one Y chromosome correctly represents the addition of normal male (XY) cat DNA.
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