genetic recombination- This is when chromosomes differ from the beginning parental/maternal chromosomes (due to crossing over).…
The recessive trait is observed in the progeny, so the rough-coated parent must be heterozygous.…
Sex linkage, because the pattern of inheritance is not the same for males and females.…
Because Mary’s phenotype expression is dominant it is possible for Mary to have several variations of genotypes which would possess the dominant allele which could be either homozygous or heterozygous whereas John’s recessive phenotype could only be present through a homozygous recessive genotype. The possible genotypes for Mary would include the homozygous dominant (NN) or a heterozygous (Nn) while John would possess the homozygous recessive (nn). The possible gametes that could be produced by Mary would be N…
D. All of the genes controlling the traits behaved as if they were on different chromosomes.…
of different phenotypes would be a blend of the parental types and variation would be lost…
T 4. In a cross between two homozygous dominant individuals, 25% of the offspring may have the recessive phenotype.…
Chromosomes are threadlike structures made up of DNA and protein, while a gene is a segment of DNA on a chromosome that controls a particular trait. An allele is an alternate form of a trait. Homozygous means that all of the alleles are the same in the DNA, and heterozygous means that the alleles are mixed up. For example, homozygous would be PP or pp, and heterozygous would be Pp. The dominant factor is uppercase, and the recessive trait is lowercase. Gregor Mendel’s legacy theory has been proved by several other scientists as…
tall x het. tall **always 3/4 dominant, 1/4 recessive Dihybrid- 2 heterozygous traits x same 2 heterozygous traits ex. het. tall, het. green x het.…
A: If I changed the allele to an H, the horns appeared. However, the h did not allow for the horns to show.…
c. In week 2 we discussed that individuals can have no more than two different alleles for each trait. In population genetics we can operate with multiple alleles for each trait. How is it possible?…
1. For each genotype below, indicate whether it is a heterozygous (He) OR homozygous (Ho).…
Life is like a roller coaster. There are ups and downs to it. If you are unlucky, you might get swatted by a branch. In this case, the branches are the roots of the story- the struggle and pain. Lucy in An Autobiography of a Face by Lucy Grealy from a young age was diagnosed with Ewing's Saracoma, a type of cancer. She was thrown in a world with a fine line between life and death; the cause of her and her family's unhappiness. As for Ben, in Stoner and Spaz by Ronald Koertge, he has a dysfunctional hand because of cerebral palsy and has to go through the loss of his mother who abandoned him. Filled with self pity and rejection from society, they lead themselves to depression but find ways to cope with loss and pain. Lines were drawn…
In the book “Lucy: the beginnings of Humankind” by Donald Johanson the author himself writes his journey of how his friend Tom Gray and himself experienced the most surprising encounter with the oldest fossil of a hominid that they later called Lucy. Donald Johanson and Tom Gray are pale anthropologists and are very well known for their discovery of Lucy. At the beginning of the book the author writes in the first person illustrating how rare it is to find fossils, many who study in this field sometimes have no luck in finding such extraordinary old fossils. Johanson feels “lucky” to have been able to find such fossils that many have been trying to find without any luck. When Johanson and Gray were at a camp in the Afar desert, they went exploring for sediments, fossils, traces that would lead them to a new discovery. They realized that many of the fossils that they were finding on their way had already been found, but luckily before they were about to leave back to the camp Johanson found part of a hominid arm. At first Gray did not wanted to believe Johanson, but then they began to form the puzzle of what it was a hominid.…
[pic]This relates to meiosis and fertilization because the passing of the traits to the four daughter haploid cells from the diploid parents. It happens just as a punnet square one child has a chance of being affected, another has a chance of being unaffected and not carrier, and two have a chance of being unaffected but a carrier.…