In the Neoproterozoic era. hope this helps
Answer:
D) A bacteriophage that has been modified to carry the gene.
Explanation:
To achieve her goal, she should use (d) A bacteriophage that has been modified to carry the gene. Bacteriophage are diverse group of viruses which are easily manipulated.
Answer:
Option B
Explanation:
Given
Number of incidences or frequency of an autosomal recessive disease 
As per Hardy Weinberg's equation, frequency of a recessive genotype is 

As per first equation of Hardy Weinberg's -

so ,


As per second equation of Hardy Weinberg's -

Substituting the given values in above equation, we get -
%

Hence, option B is correct.