Down syndrome is the result of an extra chromosome 21 in a gamete. What caused this to happen?

nondisjunction

telomeres

environment

chromosome inactivation

Bone fractures in which the bone protrudes through the skin are called (A) greenstick fractures. (B) compound fractures (C) simple fractures. (D) stress fractures.

Who was Ferdinand Marcos? a. He was arrested and imprisoned for his attempts to reform Myanmar. c. He was a communist leader of North Vietnam. b. He enforced brutal measures in Cambodia. d. He was an anti-communist dictator in the Philippines.

Most organisms on earth get energy from the sun to your body. How does energy flow from the sun to your body?

Why is my male reproductive organ so big?

What conditions would you look for if you were looking for life on moons or other planets besides earth

Primary differences between archaic homo sapiens and modern homo sapiens is

What would be the consequence of of absence of tRNA in the cytoplasm?

Water which is returned to the environment after secondary treatment is known as:

Which tool is best used to predict the outcome of various genetic combinations?

What part of the brain consists of two large hemispheres?