1. Ch. 8 Test Review
Mendel and Heredity

2. Ch. 8 Test Review when several genes influence a character
A. monogenic inheritance
B. digenic inheritance
C. polygenic inheritance
D. None of the above

3. Ch. 8 Test Review
more than two alleles (versions of the gene) for a genetic trait
A. bipolar alleles
B. multiple alleles
C. None of the above
D. both A and B

4. Ch. 8 Test Review
describes an individual that has two different alleles for a trait
A. dizygous
B. heterozygous
C. homozygous dominant
D. homozygous recessive

5. Ch. 8 Test Review
the likelihood that a possible future event will occur in any given instance of the event; the mathematical ratio of the number of times one outcome of any event is likely to occur to the number of possible outcomes of the event
A. genetics
B. luck
C. phenotype
D. probability

6. Ch. 8 Test Review
Mendel's law that states that the pairs of homologous chromosomes separate in meiosis so that only one chromosome from each pair is present in each gamete
A. law of segregation
B. law of possibilities
C. law of statistics
D. None of the above

7. Ch. 8 Test Review
describes organisms or genotypes that are homozygous for a specific trait and thus always produce offspring that have the same phenotype for that trait
A. false breeding
B. heterozygous
C. dominant
D. true breeding

8. Ch. 8 Test Review
describes an individual that has identical alleles for a trait on both homologous chromosomes
A. homozygous
B. heterozygous
C. genotype
D. phenotype

9. Ch. 8 Test Review
the entire genetic makeup of an organism; also the combination of genes for one or more specific traits
A. homozygous
B. heterozygous
C. genotype
D. phenotype

10. Ch. 8 Test Review
one of the alternative forms of a gene that governs a characteristic, such as hair color
A. allele
B. P generation
C. chromatid
D. heredity

11. Ch. 8 Test Review
the passing of genetic traits from parent to offspring
A. genetics.
B. heredity.
C. development.
D. maturation.

12. Ch. 8 Test Review
describes the allele that is fully expressed when carried by only one of a pair of homologous chromosomes
A. recessive
B. dominant
C. polygenic
D heterozygous

13. Ch. 8 Test Review
a cross between individuals that involves one pair of contrasting traits
A. monohybrid cross
B. dihybrid cross
C. trihybrid cross
D. double cross

14. Ch. 8 Test Review
the science of heredity and of the mechanisms by which traits are passed from parents to offspring
A. meiosis
B. crossing-over
C. genetics
D. pollination

15. Ch. 8 Test Review an allele is only located on the X or Y chromosome
A. recessive
B. dominant
C. polygenic
D sex-linked gene

16. Ch. 8 Test Review
a diagram that shows the occurrence of a genetic trait in several generations of a family
A. karyotype
B. pedigree
C. sonogram
D. amniocentesis

17. Ch. 8 Test Review
an organism's appearance or other detectable characteristic that results from the organism's genetic make up and the environment
A. homozygous
B. heterozygous
C. genotype
D. phenotype

18. Ch. 8 Test Review
the law that states genes separate independently of one another in meiosis
A. law of averages
B. Murphy’s law
C. law of independent assortment
D. Ohm’s law

19. Ch. 8 Test Review
a graphic used to predict the results of a genetic cross
A. genotype
B. Punnett square
C. karyotype
D. pedigree

20. Ch. 8 Test Review
the crossing of an individual of unknown genotype with a homozygous recessive individual to determine the unknown genotype
A. F1 generation
B. F2 generation
C. test cross
D. dihybrid cross

21. Ch. 8 Test Review
the first generation of offspring obtained from an experimental cross of two organisms
A. P generation
B. F1 generation
C. F2 generation
D. D generation

22. Ch. 8 Test Review
the second generation of offspring, obtained from an experimental cross of two organisms; the offspring of the F1 generation
A. P generation
B. F1 generation
C. F2 generation
generation X

23. Ch. 8 Test Review The “father” of genetics was A. A. Knight
B. Hans Krebs.
C. Gregor Mendel.
D. None of the above

24. Ch. 8 Test Review
Step 1 of Mendel's garden pea experiment, allowing each variety of garden pea to self-pollinate for several generations, produced the
A. F1 generation.
B. F2 generation.
C. P generation.
D. D generation.

25. Ch. 8 Test Review
A genetic trait that appears in every generation of offspring is called
A. dominant.
B. phenotypic.
C. recessive.
D. superior.

26. Ch. 8 Test Review
Tallness (T) is dominant to shortness (t) in pea plants. Which of the following represents the genotype of a pea plant that is heterozygous for tallness?
A. T
B. TT
C. Tt
D. tt

27. Ch. 8 Test Review
Make sure you are familiar with solving the following types of problems:
monohybrid crosses
dihybrid crosses
incomplete dominance
codominance
sex-linked traits