Chapter 22

Question 1

Organic molecules composed of nucleotides linked by covalent bonds

Answer 1

Nucleic Acids

Question 2

A, C, G, and T

Answer 2

Found in DNA

Question 3

A, C, G, and U

Answer 3

Found in RNA

Question 4

Double Stranded

Answer 4

Deoxyribonucleic Acid (DNA)

Question 5

Single Stranded

Answer 5

Ribonucleic Acid (RNA)

Question 6

Double Helix

Answer 6

Structure of DNA

Question 7

Adjacent nucleotides on same strand held together by …

Answer 7

Covalent Bonds

Question 8

Adjacent nucleotides on opposite strands held together by…

Answer 8

Hydrogen Bonds

Question 9

Loosely arranged form of DNA and histone proteins

Answer 9

Chromatin

Question 10

Compact form of DNA and histone proteins

Answer 10

Chromosome

Question 11

One of two genetically identical parts of a duplicated chromosome

Answer 11

Sister Chromatid

Question 12

Sister chromatids attach at ….

Answer 12

The Centromere

Question 13

Basic function of DNA is to..

Answer 13

Store information

Question 14

Unwinds double-stranded DNA by breaking hydrogen bonds between bases

Answer 14

DNA Helicase

Question 15

Uses each “old” strand as a template

Answer 15

DNA Polymerase

Question 16

Messenger RNA (mRNA)

Answer 16

Coding RNA

Question 17

Includes ribosomal RNA (rRNA), transfer RNA (tRNA), small RNAs

Answer 17

Noncoding RNA

Question 18

Forms part of ribosomes

Answer 18

rRNA

Question 19

Brings appropriate amino acids to ribosomes for protein synthesis

Answer 19

tRNA

Question 20

Involved in regulation of other types of RNA

Answer 20

Small RNA

Question 21

Portion of DNA (gene) used to make RNA

Answer 21

Transcription

Question 22

RNA used to make protein

Answer 22

Translation

Question 23

Portions of DNA that do not code for protein production

Answer 23

Introns

Question 24

Portions of DNA that are expressed

Answer 24

Exons

Question 25

Sequence of three nucleotides

Answer 25

Codon