Answer:
1/16 are ovoid
Explanation:
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From an AaBb genotype we can obtain four possible gametes AB, Ab, aB and ab. With the Punnett square we can observe the crossing. In the second Punnett square we can see the form A– B–
AB Ab aB ab
AB AABB AABb AaBB AaBb
Ab AABb AAbb AaBb Aabb
aB AaBB AaBb aaBB aaBb
ab AaBb Aabb aaBb aabb
AB Ab aB ab
AB A-B- A-B- A-B- A-B-
Ab A-B- A-bb A-B- A-bb
aB A-B- A-B- aaB- aaB-
ab A-B- A-bb aaB- aabb
The genotypes of the form A– B–, A– bb and aa B– have triangular seed capsules (15 of 16), while the seed capsules of the aa bb genotypes are ovoid (1 of 16).
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The atmospheric conditions at a particular time
Answer: All the statements of the question are correct.
Sickle cell disease is an autosomal recessive disorder that is characterized by formation of defective hemoglobin protein, which results in sickle shaped RBC ( red blood cell).
This disease is caused by mutation in the gene that is responsible for the protein hemoglobin ( which transport oxygen throughout body).
It is inherited by the offspring when both the mutated copy of genes ( one from each parent) are passed to him.
Carriers of the disease exhibit increased resistance to malarial parasites by controlling the level of free haem in the blood ( through enzyme heme oxygenase that produces a toxic carbon monoxide gas). The resistance thus developed, is a mutation.
Therefore, all the statements in the given question are correct.
Answer:
Stamen/Pistil
Explanation:
Flowering plants also called Angiosperms are a group of plants characterized by the possession of flowers used for sexual reproduction. The flowers contains the male part and female part. The male part of a flower is collectively called STAMEN while the female part is collectively called PISTIL or STYLE.
The STAMEN is responsible for the production of the male reproductive structure called POLLEN while the PISTIL is responsible for the production of female reproductive structure called OVARY. During reproduction, pollen (containing male gametes, sperm) from the STAMEN are transferred to the stigma (receptive part) of the STYLE in a process called POLLINATION.
