Gray squirrel Genetics.
Gray squirrel Genetics
Watch the following: https://www.youtube.com/watch?v=NWqgZUnJdAY and https://www.youtube.com/watch?v=NR3779ef9yQ And answer the following: 1). Who was Gregor Mendel and what was his contribution to the field of genetics? What organism did he base his studies upon? What are the traits of that organism that made it usefull? 2). Match the following: Gene Chromosome Allele Diploid Haploid Punnet Square Phenotype Genotype Dominant trait Recessive trait Homozygous Heterozygous a. A chromosome pair composed of a dominant and recessive allele b. A graphic tool useful for depicting genetic combinations c. one of two or more forms of a gene found at the same place on a chromosome d. the structure in the nucleus of most cells that carry genetic information in the form of genes e. somatic (body) cells containing genes with two alleles f. the outward expression of a genetic trait regardless of the actual content of the gene for that trait g. a chromosome containing only recessive genes, or only dominant genes h. a trait, the presence of the allele of which, will determine the expression (phenotype) of the gene i. sex cells (gametes) containing genes with one allele j. a trait, the presence of the allele of which, will not determine the expression of the gene k. The genetic mak up of an indvidual l.the pair (or more) of alleles in a chromosome that contain the DNA responsible for a particular genetic trait 3). In the eastern gray squirrel what are the two major phenotypes regarding pelage (fur color)? Of the two, which is dominant? 4). Assuming that two squirrel parents are heterozygous (Gg, where G is gray, and g is black) use a Punnet Square to determine the following: What is the probability that offspring will be homozygous, dominant? What will the phenotype be?What is the probability that offspring will be homozygous, dominant? What will the phenotype be? What is the probability that offspring will be homozygous, recessive? What will the phenotype be? What is the probability that offspring will be heterozygous? What will the phenotype be? 5). What are at least three reasons that the distribution of black squirrels in Madison Square Park did not to conform to the probabilities predicted by the Punnet Square?