DNA migrates toward which pole during gel electrophoresis?

Seed capsule shape in Shepard’s Purse is controlled by two genes where dominant allele at either of these genes will produce the triangular phenotype.

Why is Taq polymerase used more commonly in PCR than DNA polymerase I from E. coli? 1. Taq polymerase remains active during the high heat denaturation step unlike DNA polymerase I 2.Taq polymerase is less expensive than DNA polymerase I 3.Taq polymerase must be added after each deanturation step unlike DNA polymerase I

Multiple crosses were made between true-breeding lines of black and yellow Labrador retrievers. All the F1 progeny were black. When these progenies were intercrossed, they produced an F2 generation consisting of 91 black, 39 yellow, and 30 chocolate (brown) dogs. Based on this scenario, is it possible to mate a yellow F2 dog with a chocolate F2 dog and get black, yellow, and chocolate Lab puppies in the litter?

True or False. Automated DNA sequencing uses a single gel lane to separate products of all four chain terminator reactions.

In this technique samples are run through gels and then transferred to a nylon membrane or a filter membrane.

True or False. Sanger sequencing uses fluorescent dyes rather than radioactive isotopes to detect DNA fragments.

Which of the following is the correct order of steps in PCR?

Prokaryotic transcription produces mRNA molecules that do not contain introns.

There are 300 individuals in sample group #1 taken from population X. How many total alleles for the trait in question are present in the sample group, assuming the trait is controlled by a single codominant gene?