Download App

Cell Cycle and Cell Division — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYCell Cycle and Cell Division1 Mark
MCQ
During anaphase$-I$ of meiosis.
  • ✓
    Homologous chromosomes separate.
  • B
    Non$-$homologous chromosomes separate.
  • C
    Sister chromatids separate.
  • D
    Non-sister chromatids separate.
✓

Answer

Correct option: A.
Homologous chromosomes separate.
During anaphase $I,$ from each tetrad, two chromatids of a chromosome move as a unit $($dyad$)$ to one pole of a spindle, and the remaining two chromatids of its homologue migrate to the opposite pole. ‘Thus, the homologous chromosomes of each pair, rather than the chromatids of a chromosome, are separated. As a result, half of the chromosomes, which appear in early prophase, go to each pole. It is in the anaphase $I$ that the actual reduction in the number of chromosomes occurs.

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 (1 Marks)" from Cell Cycle and Cell Division→Cell Cycle and Cell Division — all question types→BIOLOGY STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Which one of the following can photosynthesise its food
→
Secretin causes stimulation of:
→
The nervous system and endocrine glands are
→
$A$-Leaves originate from lateral meristem and arranged in an acropetal order

$R$- They are the most important vegetative organ for photosynthesis

→
The cell organelle showing extensive polymorphism is
→
Glycogen is a.........
→
$O_2$ maintains the operation of Kreb's cycle by
→
Which of the following taxonomic categories is being described by the given statements $(i-iii)$?

$(i)$ It is the basic unit of classification.

$(ii)$ It is defined as the group of individuals which resemble in their morphological and reproductive characters and interbreed among themselves and produce fertile offsprings.

$(iii)$ Human beings belong to the species sapiens which is grouped in the genus Homo.

→
Reverse transcriptase is:
→
Carbon dioxide is transported via blood to lungs mostly
→