Estrogen synthase (ES) is an enzyme involved in the producti…

Estrogen synthase (ES) is an enzyme involved in the production of estrogen (shown below) and is abundant in estrogen-producing cells in adrenal glands, ovaries, placenta, testicles, fat tissue, and the brain. ES is 503 amino acids in length.  If there is a mutation in the ES gene that resulted in one amino acid being changed to another amino acid, which of the following is true?   Select all correct choices.

The Dscam gene in Drosophila melanogaster (fruit fly) has 11…

The Dscam gene in Drosophila melanogaster (fruit fly) has 115 introns.  Over 18,000 different Dscam proteins have been found in D. melangaster body fluids.  The proteins have a variety of functions including involvement in nerve cell growth and immune function.  This one gene can make so many proteins due to 

The pronghorn (Antilocapra americana) is a species of artiod…

The pronghorn (Antilocapra americana) is a species of artiodactyl (even-toed, hoofed) mammals found in the interior western and central North America.  The karyotype of the pronghorn is shown below.  From this karyotype, you know the pronghorn is [1] A somatic cell of a pronghorn gets a signal to divide.  In prophase of mitosis, there are [2] chromosomes and [3] sister chromatids in the cell, and at the end of mitosis, there are [4] chromosomes in each of the daughter cells. The highest level of packaging that describes what is seen in this karyotype is [5]