Which of the following changes would be found in a patient with COPD? I. increased anterior posterior diameter of the chest II. flattening of the ribs III. depression of the S-T segment of the EKG IV. increased FEV1  

of the 23 pairs of chromosomes that humans have, 1 pair are the X and Y chromosomes and are called what?

Two alleles for different traits that are on the same chromosome and very close to each would violate what law?

In flies, white eyes are sex-linked and reccessive to red eyes. If a heterozygousred-eyed female bred with a white eyed male, what ratio of the male offspring would be white eyed.

on the ribosome, what site does a tRNA bind to with one amino acid, then the peptide bond forms to and the amino acid chain then shifts over.

On a chromosome, biologist can make a genetic map by tracking the number of _ that occur from crossing over.

The enzyme that unzipps a DNA polymer before replication is what?

Three nucleotides on mRNA that identify which amino acid is to be placed in a protein is called a/an _.

The two sides of a DNA polmer are held together with what kind of bonds?

A dihybrid cross like PpTt x PpTt results in what phenotypic ratios?