Answer:
it should be,
AaBb × AaBb
Explanation:
where,
RY(round, yellow) and ry( wrinkled,green) which gives RrYy( round, yellow)...which is also called 1st filial generation ( F1)...when Mendel self hybridised the F1 plants he differentiate the plant in 9: 3: 3: 1...which is F2 generation.
Answer: Hydrogen bonds are created between the base pairs in DNA. Adenine pairs with thymine and cytosine pairs with guanine. Adenine and thymine create 2 hydrogen bonds while cytosine and guanine create 3. These bonds are fairly weak so that they can be broken when DNA is replicated (by an enzyme called helicase which unwinds DNA). However despite them being weak they do stabilize DNA's double helix structure as well.
The esophagus has a simple but significant functions to animals who has it. These functions can be a) to swallow food and serve as a passageway to the stomach and b) may serve to release the eaten food that might have some harmful compositions or chemicals -the vomit response.
