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Answer:
In the case of HIV-1, this loss-of-function mutation has proven to be beneficial.
Explanation:
Loss-of-function mutations are those that result in a gene product that has less or no function compared to the unmutated gene. When the allele completely loses function, (null allele), it is called an amorphous mutation. Phenotypes associated with these mutations are usually recessive, except when the organism is haploid, or when the reduced dosage of the normal gene is not sufficient to produce a normal phenotype (this phenomenon is called haploinsufficiency).
As mentioned earlier, this type of mutation results in a defective gene, but the text shown in the above question shows an example of a beneficial loss-of-function mutation because this mutation provides resistance to HIV-1 infection.
Answer:
Avoiding caffeine and liquids before bed, especially alcohol if you're already tired. Turning off any surrounding lights or sounds. Avoiding stimulating activities before bed. Keeping your bedroom at a comfortable temperature.
Can you give me the multiple choices that would be very helpful.
Well puberty for girls typically passes between the time of 10-15. They get their period around 12 years old typically. Also periods are every month.
