Biology » Page 178

Biology

Meredith

Plasmids are used as vectors in both plant and bacterial recombinant DNA technology. However, there is a major difference in the fate of genes introduced into bacteria on most bacterial plasmids and into plants on Ti plasmids. What is this difference?

Answer Answers (1)

Biology

Aussie

Male peacocks have large colorful tails that they spread in a fan shape to attract females during courtship. Peahens (female peacocks) are more likely to mate with males that have larger and more colorful tails. As a result, few peacocks have tails with dull coloring. Which concept is demonstrated by a decrease in dull coloring?

Answer Answers (2)

Biology

Chippy

Which word describes a resource that is living or was once living?

Answer Answers (1)

Biology

Davenport

Toxins are dumped into a lake. Which of the following is not a likely consequence? A) Plankton in the lake absorb the toxin. B) Large fish in the lake register moderate levels of the toxin. C) A baby bird living in a nest 2 miles from the lake shows high levels of the toxin in its system. D) The toxin will remain contained in that lake.

Answer Answers (2)

Biology

Dilly Dally

What are the subunits of insulin

Answer Answers (1)

Biology

Maximillian Charles

In ce consta importanta subciclului fiziologic al pasarilor migratoare

Answer Answers (1)

Biology

Moises Burgess

Do chickens lay eggs while they eat?

Answer Answers (2)

Biology

Khalil Rice

How many alleles for blood type in humans?

Answer Answers (2)

Biology

Karina Ortiz

The vasa vasorum are incompetent valves in the large veins. are special capillaries that supply nutrients to the walls of arteries and veins. are the blood vessels that supply blood to the vas deferens. are blood vessels that directly connect arteries to veins. supply blood to skeletal muscle.

Answer Answers (1)

Biology

Cristian Chang

Which of the following terms have anthropologists used to refer to the observable physical characteristics that distinguish the two kinds of human beings, male and female, needed for human biological reproduction?

a. Sex

b. Gender

c. Hermaphroditism

d. Berda

Answer Answers (2)

Biology

Ethen Brock

Which of the following would happen if cells did not have enzymes?

A. Cells would not have any chemical reactions taking place

B. Cells would have some chemical reactions, but not enough to support life processes

C. Reactions in cells would be too slow to sustain life

D. Reactions in cells would be prevented from producing needed products at the right time

Answer Answers (2)

Biology

Miley Reynolds

DNA is an incredibly long molecule, and can extend the length of a football field. how can DNA molecule fit inside a nucleus

Answer Answers (1)

Biology

Shayla Villa

How do flagellates move

Answer Answers (1)

Biology

Micheal Ward

A client's arterial blood gas results reveal a PaO2 of 55 mm Hg. The client's admitting diagnosis is acute respiratory failure secondary to community-acquired pneumonia. What is the nurse's best action?

Answer Answers (1)

Biology

Smirk

Which of the following is a factor that, by itself, does not promote widespread changes in allele or genotype frequencies? a. New mutation d. Migration b. Natural selection e. Nonrandom mating c. Genetic drift

Answer Answers (1)