We would call this scientific research
Within this
body part, lymph acquires particles that help immune system function. According
to Merriam dictionary, immune system is defined as “the bodily system that protects the body
from foreign substances, cells, and tissues by producing the immune response
and that includes especially the thymus, spleen, lymph nodes, special deposits
of lymphoid tissue (as in the gastrointestinal tract and bone marrow),
macrophages, lymphocytes including the B cells and T cells, and antibodies.”
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In animals, a gene is inserted into an embryo, modifying the genome to manufacture the product of this new gene. In plants, a gene is injected into a single cell that is grown from a seed into a plant. This plant expresses the new gene in all its cells. The difference between GM and selective breeding.
It is C as to have freckles you have to have a dominant and recessive gene (can be worked out using a punnett square) as the child has 50% of not having freckles like his dad or 50% having freckles like his mom.
male genes(homozygous recessive)
f f
female F Ff Ff
genes
f ff ff
so ff is not having freckles and being homozygous recessive, or Ff having freckles and being heterozygous.
So the child is heterozygous so C