1. Identify. Then, circle the amino group, carboxyl group, and R group.

2. Identify each

A. B.

C.

3. Identify each.

A.

B.

4. Identify the molecule. Then label a peptide bond.

5. Identify.

6. Label phosphate, sugar, hydrogen bond, nucleotide, thymine, adenine, cytosine, and guanine.

7. Label nucleus, ribosome, DNA, mRNA, tRNA, amino acid, peptide bond, codon, and anticodon.

8. Name the phase of the cell cycle. Then label the cell membrane, nuclear membrane, centriole, chromatin, and nucleolus.

9. Name the phase of the cell cycle. Then label the chromosome, sister chromatids, and centromere.

10. Name the phase of the cell cycle. Then label the asters, centrosome, and spindle fibers.

11. Label the phase of the cell cycle. Then, label the daughter chromosomes.

1.

12. Label the phase of the cell cycle. Then label the cleavage furrow.

13. Label the homologouschromosomes.