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The PCR technique requires a DNA polymerase from an organism that can endure high heat, such as Thermus aquaticus. Which step of the protocol makes the heat-stability most necessary?

Cystic fibrosis is an inherited disease that affects breathing and digestion. It is caused by a single recessive allele. Two parents without cystic fibrosis have a child who has cystic fibrosis. What are the genotypes of the parents?

A technique used to amplify a desired piece of DNA is

During S phase of the cell cycle:

The phenotypic ratio for the generation that results from a test cross between a homozygous recessive individual and a heterozygous individual is

If a mother has type AB blood, and her son has type AB blood, what are the possible blood types for the father?

_________ is a human hereditary disease that is caused by a dominant allele but does not typically show its increasingly negative effects in affected individuals until they are middle-aged.

DNA is able to move through the gel because it is _____ charged.

The following gel shows DNA from a crime scene to be compared with the DNA from four suspects. Which suspect is the most likely to have been at the crime scene? Screenshot 2022-04-22 132846.jpg 

During _______, RNA polymerase synthesizes a molecule of RNA using DNA as a template.