One primary spermatocyte produces ________ (how many?)

One primary spermatocyte produces ________ (how many?) functional

sperm; one primary oocyte produces _________ (how many?) functional egg (s)
1; 1
4; 1
1; 4
unlimited; 1
4; 4

Kelly and Sam are both unaffected carriers for two autosomal recessive disorders, PKU (chromosome 12) and cystic fibrosis (chromosome 7). They are expecting a daughter. What is the probability that she will be unaffected by these traits?
1/16
9/16
3/4
1/2
3/1

In a monohybrid cross with complete dominance, the F2 offspring of a homozygous dominant parent and a homozygous recessive parent would contain_______.
two different phenotypes and three different genotypes.
three different phenotypes and three different genotypes.
three different phenotypes and two different genotypes.
two different phenotypes and two different genotypes.
two different phenotypes and one genotype.

 
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