Punnett square The allele for tall pea plants (T) is dominate over the allele fo

Question

Punnett square
The allele for tall pea plants (T) is dominate over the allele for dwarf plants (t). Likewise, the allele for round seeds (R) is dominant over the allele for wrinkled seeds (r). You decide to cross the following parents: (TTrr X TtRr) What are the phenotypes of the parents? Phenotype of TTrr: Phenotype of TtRr: List e genotypes of the gametes that can be produced by each parent. Draw a Punnett square to illustrate the offspring generated by this cross. What is the ratio of phenotypes that will be produced by this cross? Iron is a trace element that is important for blood production. There are four naturally occurring stable isotopes of iron (Fe): Fe-54, Fe-56, Fe-57, and Fe-58. Two of the six radioactive isotopes of iron, Fe-55 and Fe-59, are used in medicine and scientific research. The primary use of the isotope Fe-59 is to track the blood cells in the body and determine if person's red blood cell (RBC development is normal. Briefly discuss what is meant by Fe being a trace element. A true element is an element that is necessary for proper of human

Explanation / Answer

a. TTrr: Homozygous dominant for T, homozygous recessive for r, therefore phenotype is tall tree with wrinkled seeds

TtRr: Heterozygous for both genes, therefore dominant allele will determine phenotype. Therefore, phenotype is tall tree with round seeds

b. Possible gametes by first plant: Tr

Possible gametes by second plant: TR, Tr, tR, tr

c.

d. Phenotypically, all the plants will be tall, with half of them having round seeds. Therefore, the phenotypic ratio will be 1:1.

Gametes Tr TR TTRr Tr TTrr tR TtRr tr Ttrr

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