Blue light stimulated opening of stomata, closing of stomata is also takes place by many other such mutants and mechanisms such as,

a.) npq1 mutants leads to closing of stomata

b.) In high PPFD leads to conversion of violaxanthin to zeaxanthin which will  leads to closing of stomata

c.) Green light in the 500 to 600 nm region of the spectrum, abolishes the opening of stomata

d.) Mutant of phototropin 1 & 2 (PHOT1/PHOT2)  leads to closing of stomata

e.) Starch content in the guard cell decreases during closing of stomata at the end of the day

Which of the following given statements will be correct for closing of stomata?

#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?

#Question id: 4871

#Unit 8. Inheritance Biology

In a testcross of an individual heterozygous for each of three linked genes, the most frequent classes of progeny were A B c/a b c and a b C/a b c, and the least frequent classes were A B C/a b c and a b c/a b c. what is the order of the genes?

#Question id: 4872

#Unit 8. Inheritance Biology

F1 heterozygous females are test-crossed with males and produced 1800 progeny The interference between these genes is 0.4. What number is of observe double cross over? 

#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?