Why might it be beneficial to express genes only when they are needed

How does a universal genetic code relate to the hypotheses about the origin of life on Earth?

Levofloxacin is a broad-spectrum antibiotic that inhibits DNA gyrase. What is the most likely reason it can kill bacteria. A. It blocks prokaryotic DNA replication by preventing melting of the DNA double helix at the replication fork B.

Is phrenology science or pseudoscience

White feathers in canaries are dominant to yellow feathers. A heterozygous canary is crossed with homozygous recessive canary. What ratio of the offspring homozygous recessive?

What effect does oxytocin have on the body

What are mitochondria and how do they function?

What is the blood type of the unknown parent

What membrane do gases move most efficiently on

A replicated chromosome is known as a

Why do we need to cut our hair and finger nails?