For animals and plants, the only organelle not composed of a membrane is? A. endoplasmic reticulum B. a mitochondrion C. ribosomes D. a nucleus

Prior to the elucidation of the genetic code, prominent scientists, including Francis Crick, had predicted that each mRNA codon, coding for one of the 20 amino acids, needed to be at least three nucleotides long.

The human genome comprises about 3 x 109 base pairs of DNA, and no two humans, other than identical twins, ever have been or will be genetically identical. Between any two humans, the amount of genetic variation is about 0.1 percent.

Reliability refers to the ability of a test to produce consistent results each time it is administered a. True b. False

Which is an example of potential energy rather than kinetic energy

Why is it important for the chromosomes to line up in the middle of the cell during mitosis? Describe the differences between the original cell that undergoes meiosis and the daughter cells produced by meiosis.

4. List other Homo species that existed at the same time as Homo sapien

What is the function of the nuclear membrane?

Explain how renewable resource and nonrenewable resources are different give two expamples of each

What does ADP+Pi stand for?

What is the most probable genotype of each parent