Biology- The continuing of life
1) The phenotype of an organism
a) represents its genetic composition.
b) is the physical appearance of a trait.
c) occurs only in dominant pure organisms.
d) cannot be seen.
2) An individual heterozygous for a trait and an individual homozygous recessive for the trait are crossed and produce many offspring that are
a) all the same genotype.
b) all the same phenotype.
c) of two different phenotypes.
d) of three different phenotypes.
3) Tallness (T) is dominant to shortness (t) in pea plants. Which of the following represents a genotype of a pea plant that is heterozygous for tallness?
a) tt
b) Pp
c) TT
d) Tt
4) What do we call a diagram showing several generations of a family and the occurrence of certain genetic characteristics?
a) Punnett square.
b) monohybrid cross.
c) pedigree.
d) family karyotype.
5) Most of the time, genetic characters are inherited by more complex patterns of heredity including all of the following, EXCEPT
a)solitary alleles.
b)incomplete dominance.
c)codominance.
d) polygenic inheritance.
