HardBotany
+4 / -1
Which of the following best describes the significance of meiosis?
A
Maintains chromosome number across generations and introduces genetic variation
B
Only reduces chromosome number
C
Only repairs damaged DNA
D
Produces genetically identical daughter cells
Explanation
Meiosis has dual significance: (1) It halves the chromosome number, which is restored at fertilisation, maintaining species chromosome number across generations. (2) Crossing over and independent assortment introduce genetic variation, which is the raw material for evolution and natural selection. This makes each individual genetically unique.
More from Cell Cycle and Cell Division
Medium
Match the column A with column B and choose the correct option :
MediumBivalents align on equator during :-
HardRead the following statement carefully and identify the correct statement and select the correct opt
MediumGiven below are the two statements : one is labelled as Assertion (A) and other is labelled as Reaso
HardGiven below are the two statements : one is labelled as Assertion (A) and other is labelled as Reaso
MediumThe interphase nucleus has a loose and indistinct network of nucleoprotein fibre called as -
Practice Botany Exams
Full-length mock tests with detailed analytics, rank, and percentile.
Browse Exams