Lecture 11 Answers:
1
D
2
D
3
E
4
C
5
B
6
A
7
C
8
B
9
D
10
E
11
A
12
D
13
A
14
A
15
A
16
A
17
B
18
A
19
C
20
C
21
A
22
C
23
Draw the picture
24
5’ – GTCATAGCTGCAT – 3’
25
G – 13.4%; A – 36.6%; C – 13.4%; T – 36.6%
26
To make replication go faster
27
Helicase, topoisomerase, ssBP
28
Draw the picture
Lecture 12 Answers
1 B
2 D
3 D
4 D
5 B
6 B
7 C
8 C
9 B OR D ?
10 B
11 A
12 A
13 C
14 B
15 D
16
17
18
19
20
21
22
23
24
25
D
B
C
A
Germ cell – haploid – n; somatic cell – diploid – 2n
Autosome – non-sex chromosome; 22 pairs of autosomes and 2 sex chromosomes
in human somatic cells; male – XY; female – XX
Diploid cell – 2n; meiosis generates 4 haploid cells – each with n
Introduce variation; divide chromosome number in half so that during fertilization
the chromosome number remains the same for the species
Telophase I – separate homologous chromosomes; telophase II – separate sister
chromatids
Homologous recombination – introduces variation; happens between homologous
chromosomes
Lecture 13 Answers
1
B
2
A
3
E
4
B
5
B
6
A
7
D
8
B
9
D
10
A
11
E
12
A
13
C
14
B
15
A
16
A
17
E
18
B
19
B
20
Snapdragon example
If I have made an error – please let me know! E-mail with questions. I will try to check
frequently today.
Maura