Sex chromosome abnormalities are more common than autosomal abnormalities because:

A. the autosome is more stable

B. the sex chromosome is more susceptible to mutation

C. autosomal defects are lethal to the fetus

If two organisms are in the same phylum, which other classification category must they also share?

What is not a type of sedimentary rock

A marine biologist discovers a new marine animal that has a coelom, but it does not develop from the mesodermal tissues. Under which category should she classify this animal?

Which is a difference between antibodies and antigens?

Plant cells can be transformed by which of the following methods? a. PCR b. Cleaving with restriction enzymes c. DNA ligation d. mRNA e. Recombinant Ti plasmids

The dental formula 2-1-2-3 corresponds to what order of teeth? a. molars, premolars, canines, incisors b. incisors, canines, premolars, molars c. canines, premolars, incisors, molars d. premolars, molars, incisors, canines

What occurs when bonds are broken and new bonds are formed

Name one negative consequence of . exponential human population growth.

Fluorine has seven electrons in its outer energy level. According to the octet rule,

Where in the plant cell do the light reactions and dark reactions occur repeatedly?