Which of the following does NOT promote speciation?

a. gene flow

b. season of fertility

c. natural selection

d. genetic drift

Item 5 Animal A and Animal B each have 95% of their DNA in common. Animal A and Animal C each have 50% of their DNA in common.

Which region of a tRNA molecule binds to amino acids? a. Anticodon loop b. Codon loop c. The 3' end d. Variable loop

Which activity is accomplished using the genetic code? mRNA molecules are transcribed to form tRNA Cells make proteins RNA molecules are copied before mitosis begins Polypeptides are made into mRNA

The moon Is unique among the moons of the solar system, party because it A. Very small B. Is larger compared to its plant C. Lacks craters D. Reflects light from the sun

Like dna, rna contains four nitrogenous bases. three of them are the same as those found in dna. the one that is different is called. the five-carbon sugar in rna is called

For fertilization to occur in humans, only one sperm is needed to weaken the barrier that surrounds the egg. a. True b. False

Which type of population growth quickly leads to overproduction of a species?

An individual strongly believes in Second Amendment protections. Which interest group would the individual MOST likely join? A) League of Women Voters B) Core of Racial Equality C) U. S. Chamber of Commerce D) National Rifle Association

In an experiment, a scientist studied the effect of increased levels of calcium had on a sugar levels in the blood. The scientists changed the calcium levels in people's blood and them measured their blood sugar levels.

Show the sequence of the base in your DNA molecule in the space provided below