Answer:
3 and 4 are both Aa
8 and 9 cannot be h0m0zygous.
Explanation:
Individual 3 and 4 are non-shaded, which means they are either AA or Aa.
They have three children, 9, 10, and 11. 9 and 11 are also non-shaded, meaning they are either AA or Aa.
However, 10 is shaded, which means he is aa.
For 10 to be aa, he must have gotten one a allele from each parent. Therefore, 3 and 4 must both be heterozygous Aa.
8 and 9 are both non-shaded, which means they are either AA or Aa.
They have three children, 13 is non-shaded, so either AA or Aa.
12 and 14 are both shaded, which means they are both aa. They much each have inherited an a allele from each parent.
This means it is impossible for individuals 8 and 9 to be h0m0zygous.
Answer: The advantages of spines in these unrelated organisms are as follows:
- for escape and defence
- for regulations of body temperature
- for conservation of water
Explanation:
The evolution of spines in Tenrecs, echidnas and hedgehogs represent STRUCTURAL ADAPTATION i.e when a part of the body of a living organism undergoes changes to become structurally adapted to its mode of life.
- The evolved spines in hedgehogs are for physical defence
- in tenrecs, they are for physical defense
Answer:
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Answer: His phenotype will be Bb. He will have brown hair because it is a dominant trait.
Explanation: Heterozygous indicates that there are two different genes present in a genotype (Bb instead of BB or bb).
Answer: water molecules
Explanation: grass cells through osmosis becomes turgid making them stand
