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Which of the following modifies proteins sent from the endoplasmic reticulum and packages them into vesicles?

Hemophilia is inherited as a sex-linked recessive trait. The gene is found on the X chromosome. Leonard and Katrina, neither of whom have hemophilia, have a son that does.  Which of the following is Katrina’s genotype?

At what point in meiosis do sister chromatids separate?

Which letter represents the CFTR protein of a healthy, non-cystic fibrosis person?

The DNA code is TCG-AAG. What messenger RNA is made from this?

Kristina Howard (pointed to by arrow) recently had a mammogram that showed a lump in her right breast.  She and her doctor are concerned that it might be cancerous.   Kristina’s oncologist needs more information about any family history of breast or ovarian cancer in her family so Kristina met with a few relatives to get the information presented below.  (Note:  dx means age of diagnosis of either breast or ovarian cancer as indicated).    In order to determine if Kristina has inherited the BRCA1 cancer gene, the doctor took a sample of cells from the inside of her mouth and took them to the laboratory.  In analyzing these cells, he would expect each cell to be ______________ and have _______________________ chromosomes.

Cystic Fibrosis is caused by

A strand of RNA has the code AUG-CAU-GAU-ACU-UAG.   Using the codon dictionary, what is the sequence of the amino acids in the polypeptide?

61 dark-skinned individuals living near the equator leave their homeland and travel to a small, uninhabited island close to Newfoundland, Canada to start a new colony. Over many generations, you would expect the skin color of the population to ______________.  This is an example of ______________________ selection.

The DNA code is TCG-AAG. What messenger RNA is made from this?