Answer: During migration, birds may carry seeds or pollen from fruits and flowers in their other habitat. They deposit these seeds and pollen grains in their new habitat. If the seeds take to the new conditions, the new kinds of plants expand the area's gene pool.
Explanation:
Answer:
True
Explanation:
In Retrovirus such as HIV, when the virus enters the host's cell it releases enzyme reverse Transcriptase which generates a complementary DNA(cDNA) by the process called Reverse transcription.
By this process the positive single stranded RNA genome is liberated into a cDNA molecule.
Since the process of reverse transcription is prone to errors, it can cause mutation that lead to drug resistance or enable the virus evade the body's immune system.
O Gains
O Losses
Transformations