Genetics Answers

What do the events of anaphase I have to do with the letters that are placed outside of a Punnett square?

As with any new technology, there are social, ethical, and legal issues to take into consideration. In the development of gene therapy, there have been a number of questions posed as to whether or not this type of treatment should be allowed. What are the social, ethical, and legal implications of using gene therapy to treat diseases and disorders?

If you cross a homozygous dominant almond shape eyes with homozygous recessive round shape eyes, what is the probability that the offspring will have phenotype of almond shape eyes?

In garden pea seeds, smooth seed coat is dominant over rough seed coat.With the aid of a genetic diagram determine the result if a homozygous rough pea is crossed with a smooth seed coat plant whose parents were rough coated

Jim was married once before and had a daughter with cystic fibrosis. A sister of his current wife katie died of cystic fibrosis Neither Jim nor any of their parents have cystic fibrosis If Jim and katie have three babies what is the probability that one or more will have cystic fibrosis?

1.Select, copy and paste a region of DNA sequence from this CDKN2A gene with 800 bp containing the site of the mutation (let be in the middle).

2.How to AMPLIFY this 800 bp sequence and CONFIRM its expected size?

3.Explain the above AMPLIFICATION method in detail mentioning all steps and reaction ingredients.

4.Explain the above size CONFIRMATION method in detail mentioning all steps and reaction ingredients,to deduce the correct ORF from the mRNA sequence of the gene and underline the mutated amino acid.

*they are all for the same gene CDKN2A

If fur color in guinea pigs demonstrated incomplete dominance predict what fur color the offspring of a white and a black guinea pig may have if they are mates together and why

Two plants with the genotypes TT and Tt _________________.

a. would have the same phenotype. c. would have different phenotypes.

b. have all dominant alleles d. have all recessive alleles.

In blood types, the alleles for A (IA) and B (IB) antigens are codominant to the recessive allele (i) for no antigens. Also, the allele for the presence of the Rh factor antigen (Rh + ) is dominant over the allele for the absence of Rh factor antigen (Rh - ). If a A+ parent, heterozygous both traits , is crossed with B + parent, also heterozygous for both traits, what are the resulting F1 phenotypes?

Genetic Problems: It may be difficult to do the Punnett Squares to hand in on the answer sheet. Therefore, for the following problems, work them out on scrap paper and only place the answers asked for on the answer sheet.

13. Cystic fibrosis is inherited as an autosomal recessive trait. If a woman carries the trait marries a normal male who does not carry the trait, what are the chances that any of their children will have the disease?

0%

14. In peas, tall is dominant over short and smooth seed dominant over rough. Cross a tall rough plant with a short smooth plant.

A. On the answer sheet, write down the genotypes of the parents.


B. From this cross, could any short rough offspring be produced?