Yellow fruit and dwarf vines are recessive traits in tomatoes. Red fruit and tall vines are dominant. Draw a punnett square and answer the questions for a completely dominant red and tall plant crossed with a heterozygous red and dwarf plant. What percent of the offspring will have yellow fruit and dwarf vines?

Use this model of a eukaryotic transcript to answer the following question.        E = exon and I = intron         5′ – UTR – E1 I1 E2 I2 E3 I3 E4 – UTR – 3′ Which components in the mRNA molecule will also be found in the cytosol, after RNA processing?

MicroRNAs and small interfering RNAs both function similarly in “silencing” genes. What are two ways in which they may act?

The following diagram illustrates four genes from the genome of a certain mammal. Different binding sites are labeled in the enhancer region of each gene. In order for a specific gene to be expressed in the mammal’s cells, all of the gene’s binding sites must be bound by transcriptional activators. The mammal’s skin cells contain activators that bind to sites B, D, and E, while the mammal’s liver cells contain activators that bind to sites A, C, and E. Which of the following is a likely pattern of gene expression for the mammal described above?

Michelle and Keith are apparently normal, but their daughter was born with alkaptonuria, an inherited metabolic disorder. If alkaptonuria is like most other human hereditary disorders, the probability of their next child being born with alkaptonuria is __________.

During replication of DNA, which of the following enzymes adds new DNA nucleotide bases to the growing strand and follows base-pairing rules?

In normal E. coli cells, under which of the following conditions is the lac operon “ON”?

Write and answer a question that isn’t a part of the exam that you prepared for. This can be formatted as a multiple choice or essay question (up to 3 points)

What happens to blood pressure when blood volume increases significantly?

This valve, located between the right atrium and right ventricle, prevents blood from flowing back into the right atrium during ventricular contraction.