Which is an arrangement of genes consisting of an operator, a promoter, and a repressor?

1) RNA polymerase

2) anticodon

3) codon

4) operon

What does this mean? "There is a lot more to science than what is observed on the surface."

Explain the biological process that enables the roots epidermal cells to do this

A sapling starts off 12 inches y'all and over the course of many years becomes 48 inches tall which characteristics of life is best represented

What is the purpose of reabsorption in the nephron?

15. Which of the following is a need of most plants? A. To take up oxygen from the environment. B. To release carbon dioxide to the environment. C. To capture sunlight to perform photosynthesis. D. To release water through their leaves.

Chronic Myelogenous Leukemia (CML) is a type of cancer that is caused by a specific chromosomal alteration that leads to the inappropriate expression of a kinase called Abl.

In pea plants, the allele for yellow seeds is dominant to the allele for green seeds. If a plant that has heterozygous yellow seed is crossed with one that has only homozygous green seeds, what percent of their first generation offspring would you

Which portion of the respiratory tract is commonly referred to as the "throat"?

Anne applies a force on a toy car and makes it move forward. What can be said about the forces acting on the toy car at the moment Anne applies the force? The forces acting on the toy car are. A: Balanced B: Unbalanced C: Equal

Match these terms and definitions.! 1. forms the pole of the spindle apparatus 2. the membrane that surrounds the nucleus of the cell 3. having chromosomes that occur singly, not in matched sets or pairs 4.