#Question id: 4873
#Unit 8. Inheritance Biology
Six bands in a salivary gland chromosome of Drosophila are shown in the following figure, along with the extent of five deletions (Del 1 to Del 5)
#Question id: 4874
#Unit 8. Inheritance Biology
In Drosophila melanogaster, black body (b) is recessive to gray body (B), purple eyes (pr) are recessive to red eyes (PR), and vestigial wings (vg) are recessive to normal wings (VG). The loci coding for these traits are linked, with the following map distances
The interference among these genes is 0.5. Pure line breeding cross Gray body, Red eye, normal wings with black body, purple eye, vestigial wings. If heterozygous female for all loci were allowed test cross, the of progeny with gray body, purple eye and vestigial wings out of 1400?
#Question id: 4875
#Unit 8. Inheritance Biology
Early in the development of a plant, a mutation in cpDNA removes a specific BgIII restriction site (B) In this species cpDNA is inherited maternally. Seeds from the plant are grown, and the resulting progeny plants are sampled for cpDNA. The cpDNAs are cut with BgIII, and Southern blots are hybridized with the probe P shown. The autoradiograms show three patterns of hybridization:
Which of the following is correct about plant of seed?
a. plant of seed 1 having only mutated chloroplast
b- Plant of seed 2 having only normal chloroplast
c- Plant of seed 3 having only normal chloroplast
d- Plant of seed 3 having both normal and mutant chloroplast
#Question id: 4876
#Unit 8. Inheritance Biology
A panel of cell lines was created from mouse–human somatic cell fusions. Each line was examined for the presence of human chromosomes and for the production of human haptoglobin (a protein). The following results were obtained: On the basis of these results, which human chromosome carries the gene for haptoglobin?
#Question id: 4877
#Unit 8. Inheritance Biology
In rabbit, spotted pattern is dominant over solid colour and short hair over angora . A F1 spotted short hair was test cross to solid colour angora stock. The cross produced
Spotted angora - 26
Solid coloured angora 144
Spotted short hair 157
Solid colour short hair 23
What is the recombination percentage between genes?
#Question id: 4878
#Unit 8. Inheritance Biology
Two strain of Neurospora crassa , one mutant for gene a , other mutant for gene b , are crossed ,result are shown below
|
Percent of asci |
1+2 |
3+4 |
5+6 |
7+8 |
|
77 |
aB |
aB |
Ab |
Ab |
|
15 |
aB |
AB |
ab |
Ab |
|
7 |
aB |
ab |
AB |
Ab |
|
1 |
aB |
Ab |
aB |
Ab |
A and B gene located at