nine the genotype of a tall pea plant by a test cross, it should be crossed with
ID: 199330 • Letter: N
Question
nine the genotype of a tall pea plant by a test cross, it should be crossed with a o d test cross, indicate the genotype of the tall pea plant if all the progeny are tall half the progeny are tall inheritance. Record you type of Laboratory Report 34. Heredity 44 rf=1 -pea plant. wing table lists several human traits that are determined by a simple dominant Record your phenotypes and the frequency of the phenotypes among eoseve HUMAN y a simple dominant/recessive mode of types among members of your class. AN DOMINANT/RECESSIVE TRAITS DETERMINED BY A SU Trait Phenolype Number in Class with Phenotype Your Phenotype Right-handed* Left-handed Free Atached Freckled Nont eckled Handedress L5 fer lobes Freckles he do rline Widow's peak 2 Bent Litle finger Straig 12 ongue roll No factor Rh hdcotes dominant traits L For each trait, is the dominant phenotype always more abundant among class members? m. Assuming your class to be representative of the general population, what can yo u conclude about the relationship between dominant and recessive phenotypes and their frequencies in the population? . Newlyweds Bill and Sue are nonfreckled. Because each had one parent who had freckles, they wonder what the probability is of their children having freckles. What would you tell them? Rh blood type is controlled by two alleles. The allele for Rh blood is dominant; the allele for Rh plood is ecessive. Linda is pregnant and Rh. Her husband Tom is Rht, as are both of his parents. What is Linda's genotype?- ary has freckles, but her husband Dick does not. Mary's father has freckles, but her mother does not. What is probability that Mary and Dick's child will have freckles? What are the two possible genotypes for Tom? hat is the probability of their baby being Rh t Tom is homozygous for Rh"? if Tom is heterozygous for Rh"?Explanation / Answer
j. dwarf
all the progeny are tall: TT
half the proigeny are tall: Tt
l. In all cases the dominant phenotype is not abundant among class members. It is observed in Freckles trait where freckled is the dominant trait however, a few members are observed with the same.
m. The dominant and recessive phenotypes observed doesnot depend on the frequency of a trait in a population. In all cases the dominant trait is not observed to show higher frequency in a population. It is observed in Freckles trait where freckled is the dominant trait however, a few members are observed with the same.
n. The probability is 0% as both Bill and Sue have recessive traits. Though each one had a parent who had freckles, Bill and Sue themselves do not carry the dominant allele. So,they will not pass on the dominant allele which is associated with the freckled trait.
o. The probability is 50% as Mary's father has freckles, but her mother does not.
p. Linda's genotype is Rh-Rh-.
The two possible genotypes for Tom are Rh+Rh-; Rh+Rh+.
The probability of their baby being Rh- if :
Trait Phenotype Your Phenotype Handedness Right-handed Left-handed Earlobes Free Attached Freckles Freckled Non-freckled Hairline Widow's peak Straight Little finger Bent Straight Tongue roll Yes No Rh+ factor Rh+ Rh-Related Questions
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