Download App

STD 12 - 4. principal of inheritance and variation — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYSTD 12 - 4. principal of inheritance and variation1 Mark
MCQ
Select the correct statement from the ones given below with respect to dihybrid cross.
  • A
    Tightly linked genes on the same chromosomes show higher recombinations.
  • B
    Genes far apart on the same chromosome show very few recombinations.
  • C
    Genes loosely linked on the same chromosome show similar recombinations.
  • ✓
    Tightlylinked genes on thesame chromosome show very few recombinations.
✓

Answer

Correct option: D.
Tightlylinked genes on thesame chromosome show very few recombinations.
d
(d): Linkage is the phenomenon ofcertain genes staying together during inheritance through generations without any change or separation due to their being present on the same chromosome. Linked genes occur in the same chromosome. Strength of the linkage between two genes is inversely proportional to the distance between the two $i.e.$, two linked genes show higher frequency of crossing over (recombination) if the distance between them is higher and lower frequency if the distance is small.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (0.5 Marks)" from STD 12 - 4. principal of inheritance and variation→STD 12 - 4. principal of inheritance and variation — all question types→BIOLOGY STD 12 Science question papers→Rajasthan Board STD 12 Science question papers→Rajasthan Board question paper generator→

Similar questions

Which of the following is a transporting tube leading from the bladder to which brings urine outside the body via penis?
→
Milk is converted into curd $(yoghurt)$  by biological activity of
→
The "Ti plasmid" of Agrobacterium tumefaciens stands for
→
Maximum solar energy may be trapped by
→
Control of gene expression takes place at the level of:
→
In $1983$ , Eli Lilly an American company, first prepared two $DNA$ sequences corresponding to $A$ and $B-$chains of the human insulin and introduced them in the plasmids of Escherchia coli to produce insulin chains. Chains $A$ and $B$ were prepared separately, extracted and combined by creating
→
Vasa efferentia are the ductules leading from.
→
In Hardy-Weinberg equation, the frequency of heterozygous individual is represented by:
→
Thorn of Bougainvillea and tendril of Cucurbita are examples of
→
Viviparity is considered to be more evolved because:
→