NEET BIOLOGY

Detailed explanation-1: -A particular species of shark normally reproduces sexually. In captivity, it was found that a female could also reproduce asexually. What is ONE negative result from asexual reproduction? decreased (less variation) biodiversity within the species.

Detailed explanation-2: -Some vertebrate species have the ability to reproduce asexually even though they normally reproduce sexually. These include certain sharks, turkeys, Komodo dragons, snakes and rays. However, most reports have been in females who have never had male partners.

Detailed explanation-3: -Their report that sharks can reproduce asexually through the process known as parthenogenesis is being published online today in the British journal Biology Letters.

Detailed explanation-4: -The disadvantage of asexual reproduction is that organisms do not receive a mix of traits from both parents. An organism that is born through asexual reproduction only has the DNA from the one parent. In fact, the offspring is genetically an exact copy of the parent. This can cause problems for the individual.

Detailed explanation-5: -Since sharks have an XY sex determination system, all parthenogenetically derived offspring are female, XX.