Exam 3: Mendelism The Basic Principles Of Inheritance

The dominant gene (G)produces green hair in aliens and the recessive gene (g)produces blue hair.Webbed fingers are due to the dominant gene (F)and normal fingers are recessive (f).An alien who was heterozygous for hair color and who had normal fingers had a father with blue hair and webbed fingers and a mother with green hair and webbed fingers.What are the genotypes of all individuals (as completely as possible)?

In a dihybrid cross,if the P generation consists of plants that are true breeding (one is homozygous dominant,the other homozygous recessive)then the F2 generation will consist of organisms that exhibit what phenotypic ratio?

The principle of dominance states that:

A man was born with six fingers on each and six toes on each foot.His wife and their son have a normal number of digits.Having extra digits is a dominant trait.The couple's second child has extra digits.What is the probability that their next child will have extra digits,assuming that the trait exhibits complete penetrance?

Below is a pedigree of a fairly common human hereditary trait where the boxes represent males and the circles represent females.Shading symbolizes the abnormal phenotype.Given that one gene pair is involved,is the inheritance pattern recessive or dominant

What does the term "true breeding" mean?

What is the probability of having 3 girls and 1 boy in a family,assuming that the probability of producing a female offspring is 0.49?

In the Chi-Square test a critical value is:

In a cross AABBCC and aabbcc (P generation),what would be the phenotypic frequency of A_bbC_ in the F2 (produced by an F1 self cross),where ___= dominant or recessive allele?

In Guinea pigs,black hair (B)is dominant over white (b),rough coat texture (R)is dominant over smooth (r),and short hair (S)is dominant over long hair (s).Cross a homozygous black,rough,short-haired Guinea pig and a white,smooth,long-haired one.What would the phenotype(s)of the offspring be? If two of the F1 offspring were crossed,what would the

In tigers a recessive allele causes a white tiger.If two phenotypically normal tigers are mated and produce a white offspring,what percentage of their remaining offspring is expected to be white?

Why was Mendel successful at tracking patterns of inheritance whereas other scientists were not?

A normally pigmented man (dominant)marries an albino woman (recessive).They have 3 children,one of whom is an albino.What is the genotype of the man?

Which of the following is a principle that Mendel discovered using dihybrid crosses? 1.Principle of segregation 2)Principle of dominance 3)Principle of independent assortment

Two parents who are not affected with Cystic Fibrosis are known carriers for the disease,which is controlled by the inheritance of a single gene.What is the probability that these parents will produce a female offspring who is affected with Cystic fibrosis,assuming that the probability of producing a female offspring is 0.51?

Assume that a Chi-square test was conducted to test the goodness of fit to a 9:3:3:1 ratio and a Chi-square value of 10.62 was obtained.Should the null hypothesis be accepted? Why?

A monohybrid cross is one in which:

Which of the following is a principle that Mendel discovered using monohybrid crosses? 1.Principle of segregation 2)Principle of dominance 3)Principle of independent assortment

A dihybrid cross is one in which:

If there are only two possible phenotypic classes,the probabilities associated with the various outcomes is referred to as: