#Question id: 4865
#Unit 8. Inheritance Biology
Neurospora strain with genotype Ab was cross to another strain with genotype aB. Following different ascus and their appropriate number given in table.
|
Ascus type |
1+2 |
3+4 |
5+6 |
7+8 |
Number |
|
1 |
Ab |
Ab |
aB |
aB |
150 |
|
2 |
AB |
AB |
ab |
ab |
10 |
|
3 |
Ab |
AB |
ab |
aB |
31 |
|
4 |
Ab |
AB |
aB |
ab |
21 |
|
5 |
aB |
aB |
Ab |
Ab |
88 |
Which is distance between gene A and Gene B?
#Question id: 4866
#Unit 8. Inheritance Biology
In a certain diploid plant, the three loci A, B, and C are linked as follows: Assuming 100% interference, if the plant with genotype ABC/abc is test cross, what proportion of the progeny will be of the genotype a b c/a b c?
#Question id: 4867
#Unit 8. Inheritance Biology
A three point test cross was carried out in Drosophila melanogaster involving three adjacent incomplete link genes A, B and C. arranged in the same order. The distance between A to B is 5 map units (mu) and that between B to C is 10 map. If pure line Drosophila AAbbCC crosses with aaBBcc to produce F1 offspring were allowed to cross with aabbcc result in following offspring genotype?
|
Genotype |
Percent |
|
Aabbcc |
A |
|
aabbCc |
B |
|
AaBbCc |
C |
What is a A, B, C respectively?
#Question id: 4868
#Unit 8. Inheritance Biology
A mouse cross C/c . D/d X c/c . d/d is made, and in the progeny there are
45% C/c . d/d, 45% c/c . D/d,
5% c/c . d/d, 5% C/c . D/d
What are distance between C and D gene?
#Question id: 4869
#Unit 8. Inheritance Biology
In the plant Arabidopsis, the loci for pod length (L, long; l, short) and fruit hairs (H, hairy; h, smooth) are linked 16 map units apart on the same chromosome. The following crosses were made:
(i) L H/L H X l h/l h = F1
(ii) L h/L h X l H/l H = F1
If the F1’s from (i) and (ii) are crossed, what proportion of the progeny are expected to l h/l h?
#Question id: 4870
#Unit 8. Inheritance Biology
Following gene order is for three points. If Genotype +y +ct +v produced actual number of double cross over gamete is 10 out of total 1000. What is interference value?