
During meiosis, crossing over occurs between:
chromosome

Important Questions on Cell Cycle and Cell Division




The following family tree traces the occurrence of a rare genetic disease. The filled symbols signify the individuals with the disease, whereas the open symbols signify healthy individuals.
Based on this information, the disease is most likely to be:


Give one significant difference between the following:
Linkage and crossing over

Given below are two statements one is labelled as: Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Mendel's law of independent assortments does not hold good for the genes that are located closely on the same chromosome.
Reason (R): Closely located genes assort independently.
In light of the above statements, choose the correct answer from the options given below:


Assertion (A): The proportion of parental gene combinations was much lighter than non-parental type
Reason (R): Gene combination is due to linkage of the two genes











