Answer:
The mother must be heterozygous.
Explanation:
t=Tay-Sachs trait
T=Normal trait
Parent genotype combinations:
Tt x Tt
Possible genotypes:
<u> | T | t </u>
<u> T </u><u>| TT | Tt </u>
<u> t </u><u>| Tt | tt </u>
Since it is a recessive trait there must be 2 of the recessive alleles for the trait to show. This means neither of the parents can be totally normal(TT).
Since both parents are considered normal the both must be heterozygous to be able to produce an child with Tay-Sachs.
Answer: B
Explanation: Common Sense
Your answer is c, cell membrane. I hope I could help xD
Have a wonderful rest of the day.
Evolution is not a thing god made humans <3
I think this technology would be useful near the Gulf Coast, around Florida, the Carolinas and New Jersey and New York.