Life Science 7- Genetics and Heredity Quiz
Name___________________period___
Multiple Choice:
1._____ Different forms of a gene are known as:
A .genotypes b. phenotypes c. chromosomes d. alleles
2._____ Who was the scientist/ naturalist who studied garden pea plants to learn about the patterns of
inheritance?
a. Mathiowetz b. Mendel c. Sutton d. Einstein
3._____ Which symbols represent a hybrid or heterozygous individual?
a. TT b. tt c. Tt d. none of these
4._____ An organism’s genetic traits carried is its:
a. genotype b. phenotype c. DNA d. alleles
5._____ The best way to observe the characteristics carried by parents to their offspring is to show a
genetic cross using a:
a. timeline b. phenotypes c. probability d. Punnett Square
6._____ How likely it is for an event to occur with the expected outcome of a genetic cross is:
a. frequency b. outcomes c. heredity d. probability
7._____The study of heredity is known as:
a. genetics b .life science c. probability d. genotype predictions
8._____ Which symbolization for a homozygous dominant trait is correct for representing purple vs.
blue flowers in a plant?
a. Pp
b. PP
c. pp
d. Pb
9._____ A factor that controls a trait is known as a(n):
a. gene b. chromatid c. chromosome d. allele
10. _____ A garden pea plant’s seed can be tall or short. Height of a garden pea plant is:
a. a trait b. an allele c. a factor d. a gene
True or False:
1._______________Aan organism’s genetic trait scan be carried by a dominant or a recessive allele or
expressed as combination of genes or alleles.
2._______________ The environment surrounding an organism can affect the expression of an
organism’s DNA in their chromosomes because various conditions in our surroundings influence our
genetic expression.
3._______________ When parents are crossed, we refer to the first generation of offspring as
The F1’s. The grandparents would be considered F1’s if their children are F2’s.
4._______________ If a purebred dominant individual is crossed with a purebred recessive individual,
the offspring will be 50% purebred and 50% hybrid.
5.________________ Gametes are produced by mitosis.
Short Answer:
1. Compare and contrast mitosis and meiosis as cell division processes. Relate to chromosome numbers
of the types of cells produced.
2. Why do all the members of a family not look exactly the same? Explain in terms of patterns of
inheritance.
PUNNET T SQUARE:
Cross a black haired dog with a white haired dog. The black haired dog is a purebred and carrying the
dominant allele. and the white haired dog is a purebred. ( This determines the dominant and the
recessive alleles.) Use B and b. Answer the following questions. 1. Can white offspring be
produced?__________ 2. What is the chance of producing a purebred black dog?__________