Which hormone is responsible for the development of the male secondary sex characteristics?

A. estrogen

B. progestin

C. progesterone

D. testosterone

Some human traits are controlled by more than two alleles this is called

How is translation initiated? see concept 17.4 (page 350) hints how is translation initiated? see concept 17.4 (page 350) the small ribosomal subunit binds to the mrna. the trna bearing methionine binds to the start codon.

Match the following terms and definitions 1. a sequence of sugars, phosphates, and nitrogenous organic bases nucleic acid 2. a complex molecule containing the genetic code DNA 3. a nucleic acid that participates in the synthesis of proteins RNA

Identify the type of movement described. are long, thread-like extensions that grow from the protists to reach nutrients. are long whip-like extensions used to move the protists to the nutrients needed.

What microscope do scientist use to look at internal parts of a cell

Most of the world's food supplies comes from 14 species of crops. Which of these crops are the most important? A) corn, potatoes, and hay B) wheat, rice, and sugarcane C) alfalfa, rice, and wheat D) grasses, bananas, and beans

Tryptophan is an amino acid necessary for E. coli survival and growth. E. coli contain genes coding for enzymes that synthesize tryptophan. These genes are grouped together on a segment of DNA called the tryptophan (trp) operon.

Why does it make sense that the sensors and controller of body temperature reside in the brain? A. Because the brain enables the body's response to temperature changes B. Because deep inside the brain is considered the body's core C.

List the four (4) major groups for the antidepressant medications and the prototype of each one. what are the major differences between the four (4) classes?

Which causes an increase in greenhouse gasses