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Afina-wow [57]
3 years ago
13

Which of the following is a disadvantage of sexual reproduction?

Biology
2 answers:
Liula [17]3 years ago
6 0
Answer: <span>A) Slow to repopulate

------

Genetic variation is an advantage of sexual reproduction. It increases survival and the ability to adapt in a species. Species with genetic variation can respond better to environment changes, since the genetic variability allows some to be immune to disease or adapt better to a change, and live to reproduce.

Slow to repopulate is a disadvantage because the species cannot recover quickly after a large disaster. It also means they cannot adapt as quickly to an environmental change.</span>
densk [106]3 years ago
4 0
Yeah the answer is A. because b is a advantage lol mark the other person brainly...
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a. + glucose, + lactose  = On

b. - glucose, - lactose  = Off

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d. - glucose, + lactose = On

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Apart from this, when lactose is present in the cell, β-galactosidase enzyme metabolizes lactose to form allolactose which causes allosteric repulsion in the lac repressor and causes its removal from the operator. As soon as repressor is removed lac operon gets activated.

In wild type lac operons, the expression of lac operon occurs when glucose level is low in the cell and lactose is present but in this mutant presence or absence of glucose will not make a difference because CRP will bind Plac promoter independent of cAMP level i.e. activator CRP will work even in high glucose concentration. If lactose is present then lac operon will always express so in option 'a & d' lac operon will express but in option 'b & c' it will not express.

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