There are three main types of RNA: messenger RNA (mRNA), ribosomal RNA (TRNA), and transfer RNA (TRNA) Which type or types of RNA contain a copy of the instructions that a gene carries?
a)mRNA and tRNA
b)mRNA only
c)mRNA, rRNA, and tRNA
d)rRNA only

What is the main difference between the central nervous system (cns) and the peripheral nervous system (pns)? .the cns involves the brain and spinal cord, and the pns involves the body nerves. the cns involves the body nerves, and the pns involves the brain and spinal cord. the cns involves sensory neurons, and the pns involves motor neurons. the cns involves motor neurons, and the pns involves sensory neurons.

Babies with very low or very high birth weight are less likely to survive. observe a graph of the data. % babies born at different weights % babies born in that category 6.0 6.5 in 50-555 70-75 80-8511 100-1055 which statement is a valid claim that could be made using the data in the graph? directional selection is occurring because the graph favors an extreme. mark this and retum save and exit next submit o type here to search

Look at the inheritance patterns. what do you notice? can a single offspring inherit both chromosomes from one parent?