These are the possible genotypes RR, Rr, Rr, rr
First 3 carries dominant gene for tongue rolling, so they can do it,
while the 4th genotype rr is homologous for recessive, and he/she can't
perform tongue rolling.
The answer is d im trying to write as long as possible so i exceed the 20 character minimum limit so yea<span>
</span>
False teeth help the digestive system by chewing pieces of food into smaller pieces but it is not part of it.
<span />
D. Chlorophyll a
Hope this helped
Answer:
Explanation:
Preparation of competent cells -
Transformation
recovery
plating