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During prokaryotic DNA replication, what is the name of the enzyme that matches the nucleotide base in the original parental DNA strand with its complementary partner?

Huntington’s disease is brain deterioration in humans caused by an autosomal dominant gene.  If your mother is normal but your father is heterozygous for Huntington’s disease, what are the chances that you will have this genetic disease?  

Sexual reproduction is advantageous because of the tremendous genetic variability in the offspring.  Which results in genetically different offspring?

In guinea pigs, black fur (B) is dominant to brown (b) and short fur (S) is dominant to long (s). A homozygous black, heterozygous short-furred guinea pig (BBSs) is mated with a homozygous brown, heterozygous short-furred animal (bbSs).  The expected results are:

If a plant has a genotype: RrTT how many unique gametes can the plant produce?

When E.coli are grown in the absence of lactose, the _________ protein binds the operator of the Lactose Operon and blocks transcription.

For each oocyte that undergoes meiosis, one egg and three _____ _____ are produced?

You are observing an onion root tip going through mitosis. You notice that all of the chromosomes are lined up in the middle of the cell. Which phase of mitosis are you observing?

Which occurs in the nucleus?

Refer to Figure 3. Which substance(s) is a substrate?