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A 2n human cell has 46 chromosomes. How many chromosomes does a male gamete have?
Sex cells are made.
dominant allele
All are regular height.
50 percent
1:2
23
genes
twice
What are the chances that a human offspring will have an XY genotype?
Sex cells are made.
dominant allele
All are regular height.
50 percent
1:2
23
genes
twice
During meiosis, cells divide
Sex cells are made.
dominant allele
All are regular height.
50 percent
1:2
23
genes
twice
A parent has one dominant allele for tall (T) and one for short (t). The other parent has a tt genotype. What is the probability of the offspring's being tall?
Sex cells are made.
dominant allele
All are regular height.
50 percent
1:2
23
genes
twice
Which of the following occurs in meiosis that does NOT occur in mitosis?
Sex cells are made.
dominant allele
All are regular height.
50 percent
1:2
23
genes
twice
Dwarf pea plants (tt) are crossed with pea plants of regular height (TT). Which of these describes the first generation plants?
Sex cells are made.
dominant allele
All are regular height.
50 percent
1:2
23
genes
twice
Inherited traits are the result of
Sex cells are made.
dominant allele
All are regular height.
50 percent
1:2
23
genes
twice
An allele that is expressed even if only one copy is present in a genotype is a
Sex cells are made.
dominant allele
All are regular height.
50 percent
1:2
23
genes
twice
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