Download Bio07_TR__U04_CH11.QXD

Name _______________________________
Class __________________
Date _______________
Matching On the lines provided, write the letter of the definition of each term.
I __________ 1. genetics
a. likelihood that something will happen
C _________ 2. trait
b. individual whose two alleles are the same
D _________ 3. hybrid
c. specific characteristic
G _________ 4. gene
d. offspring of crosses between parents with different
traits
J __________ 5. allele
e. the idea that only one of two alleles are passed on
F__________ 6. gamete
f. sex cell
A _________ 7. probability
g. factor that determines traits
H _________ 8. Punnett square
h. diagram showing possible gene combinations
E _________ 9. Law of Segregation
i. the scientific study of heredity
B _________ 10. homozygous
j. form of a gene
Completion On the lines provided, complete the following sentences. Use the word bank below to assist
in problems 11-15.
homozygous
heterozygous
Law of Independent Assortment
true-breeding
genotype
phenotype
hybrid
dominant
gametes
alleles
recessive
11. Organisms that self-pollinate, producing offspring identical to
themselves, are TRUE-BREEDING ________
12. Although organisms with the same physical characteristics have
the same PHENOTYPE ___________ , they might have different
GENOTYPE ____________ , or genetic makeup.
13. According to the principle known as LAW OF INDEPENDENDT ASSORTMENT ,
genes that segregate independently do not influence each other’s inheritance.
14. DOMINANT ____________ alleles “cover up” the expression of ___RECESSIVE_______ alleles
15. A ___HYBRID___________results in the joining of female and male
reproductive cells that contain different forms of a gene.
Multiple Choice On the lines provided, write the letter of the answer that best
completes the sentence or answers the question.
B _________ 16. In what process do male and female reproductive
cells join during sexual reproduction?
a. segregation
c. self-pollination
b. fertilization
d. cross-pollination
Name _______________________________
Class ___________________
Date _______________
D _________ 17. Organisms that have identical alleles for a particular
trait are
a. heterozygous.
c. diploid.
b. polygenic.
d. homozygous.
C _________ 18. An organism such as a pea plant that has an allele for being tall and an
allele for being short is
a. true-breeding.
c. heterozygous.
b. homologous.
d. homozygous.
B _________ 19. Two organisms with the genetic make up of HH
and Hh have the same
a. eggs.
c. sperm
b. phenotype
d. genotype
D____________20.
An individual with the genotype of AaBbCcDd would be
able to produce _____ types of gametes.
a. one
c. four
b. eight
d. sixteen
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