human+geneticsBA

(1) Define: genotype, alleles, dominant allele, recessive allele, locus, homozygous dominant, phenotype, homozygous recessive, heterozygous

(2) What is the difference between genotype and phenotype? Genotype is what a specimens genes would look like, Phenotype is what a specimen physicaly looks like

(3) What are the three possible genotypes and two possible phenotypes for a characteristic that is controlled by two alleles, one being dominant and the other recessive? 4 dominant, 2 dominant 2 recessive, 4 recessive

(4) For each of the following genotypes, give all the possible gametes. WW: WW WWSs: WS,Ws,WS,Ws Tt: Tt Ttgg: Tg,Tg,tg,tg AaBb: BA,Ba,bA,ba (5) For each of the following, state whether a genotype or a gamete is represented. D: Gamete Ll: Genotype Pw: Genotype LlGg :Genotype (6) What is the genotype of the individual from the following crosses? ES x es : Ee,Es,Se,Ss eS x es : ee,eS,ee,es

(7) Define monohybrid and Punnett square A cross between two heterozygous parents

(8) A man with a wiidow's peak has a mother witha a straight hairline. Widow's peak (W) is dominant over straight hairline (w). What is the genotype of the man? Ww

(9) Both a man and a woman are heterozygous for freckles. Freckles (F) are dominant over no freckles (f). What is the chance that their child will have freckles? 50/50

(10) Both you and your sister or brother have attached earlobes, yet your parents have unattached earlobes. Unattached earlobes (E) are dominant over attached earlobes (e) What are the genotypes of your parents? Ee