Unit 4 Exam

Question 1

Small variations in sequences of the same gene
A. What is an allele?
B. What is a chromosome?
C. What is genotype?
D. What is a mutation?
E. What is a homologue?

Answer 1

A

Question 2

Covalent bond
A. What gets broken at the start of replication?
B. What gets broken by DNA polymerase?
C. What is made by DNA polymerase?
D. What holds the 2 strands of DNA?

Answer 2

C

Question 3

Basic unit of information for a trait
A. What is an allele?
B. What is a gene?
C. What is a chromosome?
D. What is heredity?

Answer 3

B

Question 4

Molecule that makes up genes
A. What are nucleic acids?
B. What is RNA?
C. What are codons?
D. What is DNA?

Answer 4

D

Question 5

DNA polymerase
A. What breaks H-bonds?
B. What copies genes?
C. What makes new strands of DNA?
D. What reads codons?

Answer 5

C

Question 6

After the chromosomes have duplicated, but the cell has not yet divided
A. What is interphase?
B. What is S phase?
C. What is prophase?
D. What is G2 phase?
E. What is G1 phase?

Answer 6

D

Question 7

When the cytoplasm is split into 2 cells
A. What is telophase?
B. What is cytokinesis?
C. What is anaphase?
D. What is interphase?
E. What is metaphase?

Answer 7

B

Question 8

When the mitotic spindle forms
A. What is prophase?
B. What is metaphase?
C. What is anaphase?
D. What is covalent bonding?
E. What is the double helix effect?

Answer 8

A

Question 9

Where spindle fibers grow out from
A. What are centromeres?
B. What are the chromosomes?
C. What are the centrosomes?
D. What are chromatids?

Answer 9

C

Question 10

2
A. What is the number of divisions?
B. What is the number of chromosomes?
C. What is the number of cells made?
D. What is the number of duplications?

Answer 10

C

Question 11

Where transcription occurs
A. What is the nucleus?
B. What is the Rough ER?
C. What is the Smooth ER?
D. What is cytoplasm?
E. What is the mitochondrion?

Answer 11

A

Question 12

T and U
A. What is complementary?
B. What are nucleotides in RNA?
C. What is switched when a gene is transcribed?
D. What are nucleotides in DNA?
E. What is codon and anticodon?

Answer 12

C

Question 13

Promoter
A. What is the site of RNA polymerase binding?
B. What is the site of DNA polymerase binding?
C. What is the part of the RNA that recognizes DNA?
D. What is the part of DNA that codes for the codons?
E. What is the enzyme that promotes transcription?

Answer 13

A

Question 14

In the DNA
A. What are codons?
B. What is polymerase?
C. What are the anticodons?
D. What is the terminator?
E. What is the stop codon?

Answer 14

D

Question 15

RNA Polymerase
A. What copies the promoter?
B. What copies the coding region?
C. What makes the new DNA strand?
D. What reads the codons?

Answer 15

B

Question 16

aa
A. What is homozygous?
B. What is homozygous dominant?
C. What is homozygous recessive?
D. What is heterozygous?
E. What is recessive?

Answer 16

C

Question 17

How traits are followed in a family
A. What are X-linked traits?
B. What are Punnett squares?
C. What are pedigrees?
D. What are family trees?
E. What are recombination frequencies?

Answer 17

C

Question 18

Aa
A. What is dominant?
B. What is recessive?
C. What is normal?
D. What is a carrier?
E. What is a mutant?

Answer 18

D

Question 19

Heterozygous
A. What is the only way a dominant trait can show up?
B. What must the genotype be of two people without CF producing a child with CF?
C. What must be the phenotype of two people without CF producing a child with CF?
D. What is the only way that a recessive trait can show up?
E. What is the only way that a person can make dominant gametes?

Answer 19

B

Question 20

More boys affected than girls
A. What describes incomplete traits?
B. What describes X-linked traits?
C. What describes codominant traits?
D. What describes meiotic traits?

Answer 20

B

Question 21

Ribosome
A. What reads the anticodons?
B. What contains the amino acids?
C. What reads the codons?
D. What is made of mRNA and protein?

Answer 21

C

Question 22

Where translation takes place
A. What is the cytosol?
B. What is the nucleus?
C. What is the nucleoid region?
D. What is the mitochondria?
E. What is the tRNA?

Answer 22

A

Question 23

Same in all organisms
A. What makes the triplet code universal?
B. What makes the triplet code unambiguous?
C. What makes the triplet code redundant?
D. What makes the triplet code complementary?
E. What makes the triplet code foolproof?

Answer 23

A

Question 24

tRNA
A. What makes the ribosome fall off when a stop codon is encountered?
B. What helps move the ribosomes along?
C. What brings the amino acids to the ribosome?
D. What contains the codons?
E. What is identical to the mRNA?

Answer 24

C

Question 25

Anticodon A. What is in the ribosome? B. What is read by the ribosome? C. What is complementary to DNA? D. What is complementary to mRNA? E. What is complementary to rRNA?

Answer 25

D