You catch 2 snakes from a meadow. One’s scales are a striped pattern and the other is spotted. Eventually one snake lays eggs and when hatched you find all striped baby snakes. You release them, keeping 2 baby snakes. When they produce baby snakes, you observe 8 striped and 2 spotted. (a) Suggest a possible model to describe the inheritance of scale patterns. Define genotypes and phenotypes for the Parental, F1, and F2 snakes. Verify your model with a chi square test. SHOW ALL YOUR WORK b. Suppose instead that the F1 generation all had mottled scales (neither striped nor spotted) and their offspring (F2) were striped, mottled, and spotted. What type of dominance would this be and what ratio of offspring would you expect in the F2 generation?

You are working with a hypothetical fly and have found color and wing mutants. Preliminary work indicates that the mutant traits are recessive and the associated genes are not sex-linked, but beyond that, you have no information. You first look at 2 genes, each with 2 alleles. "B" or “b" for body color and "W" or "w" for wing surface. The red-body phenotype is dominant to the yellow-body phenotype and smooth wings are dominant to crinkled wings.

Let's consider a paternally imprinted gene. A female skink inherited alleles that that confer: 1) a mutant violet tail-color in the egg and 2) a mutant violet tail-color allele in the sperm. A male skink mate inherited a wild-type blue allele from the sperm and a mutant violet allele from the egg. They have 500 offspring. a. What tail color phenotypes do the parent male and parent female skinks have? Briefly explain your reasoning. female = male = b. What fraction of the offspring do you expect to have each phenotype (blue and violet tail color)? Briefly explain your reasoning/show your work.

Spoink is a Pokemon character with a spring tail. It must bounce continuously or it will die. Imagine that the spring in the tail is controlled by a single gene with two alleles T and t. Individuals with the genotype TT have very stiff tails that take a lot of energy to bounce, Tt have just the right amount of spring, and those with tt tails have very floppy tails that deform after long periods of bouncing, making it very difficult to continue bouncing. The genotype frequency in this population is: TT=25% Tt=70% tt=5% Part A:  The frequency of the t allele in the population is  ___%. The expected frequency of the Tt genotype in the population is ___%. Part B: Is the population of Spoink in Hardy-Weinberg Equilibrium? A. Yes B. No Rationale? Part C: What type of selection, if at all, might be operating on Spoink tails springy-ness?  A. Stabilizing Selection B. Balancing Selection C. Directional Selection D. Disruptive Selection E. No selection is occurring; population is in…

Can you please not type the answer can you write it on a paper

Hello Heliodors! (cont.) Trait A For Heliodors, having four arm-like extensions is dominant over having two. In a family of Heliodors, Hayden has four arm-like extensions like his mother Helen. His father, Harry, and sister, Holly both have two. What are the genotypes of everyone in this family of Heliodors? What is Holly's genotype? aa (homozygous recessive) Not enough information to determine. Aa (heterozygous) AA (homozygous dominant) O O O O

For each phenotype give the genotypes that are possible. In cattle, (cows) having no horns, or being polled, (P) is dominant to horns (p). Polled (no horns):     Horns:     In pigs, erect ears (E) are dominant to floppy ears (e).   Erect (pointing up):   Drooping: