If you look at a Punnet square of this, you can determine the possible phenotypes. Lets assign B for brown eyes, b for blue eyes, H for right hand and h for left hand.
The mother is blue eyed and left handed which are both recessive traits. This means that her genotype would be bbhh. Now the father is heterozygous for both, which means he has a dominant and recessive allele for each trait. His genotype would then be BbHh
The Punnet square should look like the table below:
Mother:bbhh
Father:BbHh
bh bh bh bh
BH BbHh BbHh BbHh BbHh
Bh Bbhh Bbhh Bbhh Bbhh
bH bbHh bbHh bbHh bbHh
bh bbhh bbhh bbhh bbhh
Based on the Punnet square, you have 4 possible genotypic combinations and 4 possible phenotypic combinations.
BbHh: Brown-eyed, right-handed
Bbhh: Brown-eyed, left-handed
bbHh Blue-eyed, right handed
bbhh Blue-eyed, left-handed
Answer:
The three experiments are:
Griffith performed an experiment by which he observed that harmless R strain of the bacteria transformed into harmful S strain when mixed with heat-killed S strain.
He concluded that the "transforming principle" from the heat-killed S strain bacteria transformed the R strain.
- Avery, McCarty, and MacLeod- Identification of transforming principle
They identified that the nature of the transforming principle mentioned by Griffith.
They used digestive enzymes such as proteases, RNase, and DNase.
They conclude that the transforming principle was DNA in nature.
- The Hershey-Chase experiment
They used radioactive sulfur to label proteins and radioactive phosphorus to label DNA in the bacteriophage.
The infected bacteria were blended and centrifuged.
The radioactive phosphorus, that is, DNA was found inside the cell whereas the radioactive sulfur, that is, proteins were found outside the cell.
It also proved that the genetic material was DNA, not protein or RNA.
Answer:
Gametophyte,sporophyte.
Explanation:
The gametes produce by gametophyte is contain in Anther and ovaries and sporophyte develops into zygote(plant).
Sporophyte through meiosis produces spores. Meiosis been a reductional process reduced the 2n to n(haploid chromosome).
The haploid spores formed germinate into haploid gametophyte.
Gametophyte at maturity produces gametes through mitosis. Two gametes from similar organism or organism of the same species then fuse together to produce zygote
Answer:
Skin serves as a protective barrier, a way to sense the world, and a layer that keeps nutrients and water inside the body.
Explanation:
