DNA Structure and Replication REVIEW GAME

What is the correct relationship among DNA, genes and chromosomes? A gene contains many chromosomes which are composed of proteins A chromosome contains many genes which are composed of DNA A gene is composed of proteins which are found on the chromosomes A chromosome contains many genes which are composed of proteins

What is the correct relationship among DNA, genes and chromosomes? A gene contains many chromosomes which are composed of proteins A chromosome contains many genes which are composed of DNA A gene is composed of proteins which are found on the chromosomes A chromosome contains many genes which are composed of proteins

DNA and RNA are polymers of… A. fatty acids B. nucleotides C. monoglycerides D. amino acids

DNA and RNA are polymers of… A. fatty acids B. nucleotides C. monoglycerides D. amino acids

What are the parts of a nucleotide. a What are the parts of a nucleotide?   a. a phosphate, five-carbon sugar, and a nitrogen base b. a group of linked amino acids c. one half of a DNA molecule d. a protein, a sugar, and a phosphate e. a phosphate, a six-carbon sugar, and a nitrogen base

What are the parts of a nucleotide. a What are the parts of a nucleotide?   a. a phosphate, five-carbon sugar, and a nitrogen base b. a group of linked amino acids c. one half of a DNA molecule d. a protein, a sugar, and a phosphate e. a phosphate, a six-carbon sugar, and a nitrogen base

Which parts of a nucleotide make-up the backbone of a nucleic acid molecule?   A) phosphate B) sugar C) nitrogen base D) A and B E) B and C

Which parts of a nucleotide make-up the backbone of a nucleic acid molecule?   A) phosphate B) sugar C) nitrogen base D) A and B E) B and C

In double stranded DNA, the weak bonds between complementary nitrogen bases involve:   a. RNA b. DNA c. hydrogen bonds d. five-carbon sugars e. sulfur

In double stranded DNA, the weak bonds between complementary nitrogen bases involve:   a. RNA b. DNA c. hydrogen bonds d. five-carbon sugars e. sulfur

Which of the following is NOT one of the nitrogen bases in a DNA molecule?   a. adenine b. cytosine c. uracil d. thymine e. guanine

Which of the following is NOT one of the nitrogen bases in a DNA molecule?   a. adenine b. cytosine c. uracil d. thymine e. guanine

Cytosine will form a base pair only with: a. cytosine b. adenine c Cytosine will form a base pair only with:   a. cytosine b. adenine c. thymine d. uracil e. guanine

Cytosine will form a base pair only with: a. cytosine b. adenine c Cytosine will form a base pair only with:   a. cytosine b. adenine c. thymine d. uracil e. guanine

|||||||||||||||| _________________________________ What is the base sequence of the DNA strand that would be complementary to the following single-stranded DNA molecule? GGATCTGATCCAGTCA |||||||||||||||| _________________________________

|||||||||||||||| CCTAGACTAGGTCAGT What is the base sequence of the DNA strand that would be complementary to the following single-stranded DNA molecule? GGATCTGATCCAGTCA |||||||||||||||| CCTAGACTAGGTCAGT

Identify components 1 and 2 of the molecule to the right.

Identify components 1 and 2 of the molecule to the right. 1 = a phosphate 2 = deoxyribose sugar  You know it’s DNA since it is double stranded!

In this DNA, which of the following can 3 and 4 be? A and G U and A C and C A and T

In this DNA, which of the following can 3 and 4 be? A and G U and A C and C A and T

In this DNA, 3 and 4 are held Together by Barry Bonds Covalent Bonds Peptide bonds Hydrogen bonds

In this DNA, 3 and 4 are held Together by Barry Bonds Covalent Bonds Peptide bonds Hydrogen bonds

DNA replication… A. occurs by the addition of nucleotides to the end of the DNA molecule. B. results in the formation of four new DNA strands. C. produces two brand new DNA strands that do not resemble the original strand D. uses each strand of a DNA molecule as a template for the creation of a new strand. E. begins when two DNA molecules join together to exchange segments.

DNA replication… A. occurs by the addition of nucleotides to the end of the DNA molecule. B. results in the formation of four new DNA strands. C. produces two brand new DNA strands that do not resemble the original strand D. uses each strand of a DNA molecule as a template for the creation of a new strand. E. begins when two DNA molecules join together to exchange segments.

Describe what is happening in each step of DNA replication (figure to right)

Describe what is happening in each step of DNA replication (figure to right) 1: one parent double stranded DNA 2: DNA unzips and unwinds 3: Complementary nitrogen bases match up forming a new strand of DNA using an old strand as a template 4: Two daughter double helices; each ½ old and ½ new

The enzyme ________ unzips and unwinds the DNA molecule. A) DNA polymerase B) helicase C) primase D) DNA ligase E) unzipase

The enzyme ________ unzips and unwinds the DNA molecule. A) DNA polymerase B) helicase C) primase D) DNA ligase E) unzipase

The enzyme ________ assembles a new strand of DNA according to the base pairing rules and using an old strand of DNA as the template.. A) DNA polymerase B) helicase C) primase D) DNA ligase E) unzipase

The enzyme ________ assembles a new strand of DNA according to the base pairing rules and using an old strand of DNA as the template.. A) DNA polymerase B) helicase C) primase D) DNA ligase E) unzipase

A double-stranded DNA is 21% cytosine. What is the percent of thymine in that DNA?

A double-stranded DNA is 21% cytosine. What is the percent of thymine in that DNA? 29 % thymine

A double-stranded DNA is 38% adenine. What is the percent of cytosine in that DNA?

A double-stranded DNA is 38% adenine. What is the percent of cytosine in that DNA? 12 % cytosine

In the semi-conservative DNA replication, daughter DNA molecules consist of: a. one-half of the molecules with two parental strands and one-half of the molecules with two new strands b. all molecules with interspersed parental and new segments c. all molecules with one parental and one new strand d. all molecules with two new strands

In the semi-conservative DNA replication, daughter DNA molecules consist of: a. one-half of the molecules with two parental strands and one-half of the molecules with two new strands b. all molecules with interspersed parental and new segments c. all molecules with one parental and one new strand d. all molecules with two new strands

Two differences between DNA and RNA are that only the RNA contains… a) ribose and uracil b) deoxyribose and uracil c) deoxyribose and thymine d) ribose and adenine e) ribose and thymine

Two differences between DNA and RNA are that only the RNA contains… a) ribose and uracil b) deoxyribose and uracil c) deoxyribose and thymine d) ribose and adenine e) ribose and thymine