Crossing over is a source of variation because:

Redistributed genes give new combinations

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Chromosomes are swapped during crossing over

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Due to exchange, genes are redistributed

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Part of DNA is exchanged during crossing over

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D Part of DNA is exchanged during crossing over
Meiosis provides a mechanism that ultimately results in variation. During initial phases of meiosis, parts of DNA are exchanged with other parts. Such an exchange causes redistribution of genes. When such chromosomes are transmitted to the next generation, they cause the expression of new combinations. These are the variations.

Suggest Corrections

Similar questions

Besides crossing over, which other process in meiosis helps in bringing about variation?

Join BYJU'S Learning Program