Question
In: Biology
You are following four traits (a, b, c, and d). The following crosses were performed. -...
You are following four traits (a, b, c, and d). The following crosses were performed.
- Cross 1: a b female x c d male
F1 progeny: all wild type
- Cross 2: F1 female x F1 male
F2 progeny: 1600 wild type
(total 6400) 800 d
400 b d
800 a
400 a b
1200 c
400 dc
800 b
A. Describe the inheritance pattern for each trait. Be as complete as possible.
B. Which, if any, genes are linked? Can you provide a map distance between the genes?
Solutions
Expert Solution
Recombination frequency (R.F.) between the genes c-d is minimum means they are linked, as they are closely located on a chromosome. If the value of Recombination frequency (R.F.) comes less than 17% it means genes are linked.
- R.F. between a-b is 37.5% this value is greater than 17%, means these genes are located on two separate chromosomes means these genes are located on two separate chromosomes means they will be segregated independently during gamete formation.
- Mode if inheritance of the gene b, c will be similar to the genes a-b, as described above because recombination frequency of them is greater than 17%.
- Genes c-d are linked because their recombination frequency is minimum, thus they will not be segregated independently as they are closely located.
gladiator answered 2 years agoRelated Solutions
2) You are following four traits (a, b, c, and d). The following crosses were performed....
2) You are following four traits (a, b, c, and
d). The following crosses were performed.
Cross 1: a b female x c d male
F1 progeny: all wild type
Cross 2: F1 female x F1 male
F2 progeny: 1600 wild type
(total 6400) 800 d
400 b d
800 a
400 a b
1200 c
400 dc
800 b
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Activity
Activity Time
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Probability
A
5
0.32
6
0.39
7
0.27
8
0.02
B
4
0.18
6
0.51
8
0.31
C
7
0.10
9
0.29
11
0.43
13
0.15
15
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10
0.61
12
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progeny:
2000 acbe
250 cd
10 c
130 wild type
170 be
220 abe
230 a
2120 ac
10 ad
2100 dbe
180 cad
20 cbe
2150 d
230 cdbe
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150 cadbe
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X-linked
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X-linked
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Trial
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Initial [B] (mol/L)
Initial [C] (mol/L)
Initial Rate (mol/L . s)
1
0.2790
0.1670
0.0334
1.190
2
0.5580
0.1670
0.0334
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3
0.5580
0.3340
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