Download Genetics Study Guide 2016

Genetics Study Guide 2016
1.
The table shows the results of crosses of pea plants. Based on the information in the table, what is the
approximate ratio of yellow seeds to green seeds?
A. 1:3
C. 3:3
B. 3:1
D. 2:1
2. What is the study of heredity called?
A. Classification
C. Physics
B. Genetics
D. Hydrology
3. What is the term for factors that control traits?
A. Genes
B. Recessive
C. Parents
D. Offspring
4.
A. dominant
C. preferred
B. recessive
D. mutated
5. Offspring that are genetically different from both parents are produced through
A.
B.
C.
D.
budding
binary fission
asexual reproduction
sexual reproduction
6.
A. FF
C. ff
B. Ff
D. f
7. How could crossing a white flower and a red flower produce plants with pink flowers?
A.
B.
C.
D.
The pink flower has incomplete dominant red and white genes.
The genes for red color and white color do not affect each other.
The pink flower only gets the genes for color from one of the parent plants.
The gene for pink color is in all flowers, but the genes for red and white color are only in some of
the flowers.
8. What does a Punnett square show?
A.
B.
C.
D.
All the possible outcomes of a genetic cross
Only the dominant alleles in a genetic cross
Only the recessive alleles in a genetic cross
It shows only the parents' phenotypes
9. Brown eyes are dominant to blue eyes. Both of Donna's parents have brown eyes. What is the BEST
explanation for why Donna has blue eyes?
A.
B.
C.
D.
All of Donna's grandparents must have had blue eyes.
Both of Donna's parents carry a gene for blue eyes.
Donna's mother probably carries the gene for blue eyes.
Donna's father probably carries the gene for blue eyes.
10.
A. Generation Square
B. Punnett Square
C. Pedigree
D. Genotype
11. What is an organism’s physical appearance called?
A. Codominance
B. Phenotype
12. What is heredity?
A.
B.
C.
D.
C. Heterozygous
D. Genotype
traits passing from offspring to parents
traits passing from parents to offspring
plants that are cross-pollinated
the ratio of dominant to recessive traits
13.
A. FF and ff
C. Fluffy furred rabbits
B. FF, Ff, and ff
D. Bristly furred rabbits
14. When a dairy farmer chooses a specific bull to mate with her cows in order to produce calves that will
grow up to produce more milk, this process is called
A.
B.
C.
D.
Genetic typing
Selective breeding
Genetic counseling
Regeneration
15. If T is dominant for tall, what are the possible phenotypes of the offspring when the following parents
are crossed: TT x tt?
A. 50% tall and 50% short
B. 100% tall
16. What is an organism’s genotype?
C. 100% short
D. 75% tall and 25% short
A. physical appearance
C. genetic makeup
B. feather color
D. recessive traits
17. If black fur (B) is dominant to white fur (b). What fur color would the alleles “Bb” code for?
A. Grey
C. White
B. Brown
D. Black
18. Single-celled organisms can reproduce and create cells exactly like themselves without combining genes
from two different parent cells. When they do this, they use a type of
A. asexual reproduction.
B. gamete formation.
C. natural selection
D. sexual reproduction
19. Which of the following statements about reproduction is incorrect?
A.
B.
C.
D.
Sexual reproduction requires two parents.
The egg and sperm do not carry genetic information.
In sexual reproduction, a fertilized egg is called a zygote.
In asexual reproduction, the offspring are identical to the parents.
20. In a species of bird, the allele for red color (A) is dominant over the allele for blue color (a). Which of
the following best describes the offspring of parents with the genotypes AA crossed with aa?
A.
B.
C.
D.
All the offspring will be red (A).
All of the offspring will be blue (a).
All of the offspring will be purple (mixture of blue and red).
Half of the offspring will be red and half will be blue.
21. Which term describes when one trait is not completely dominant over another?
A. Phenotype
C. Incomplete Dominance
B. Genotype
D. Punnett Square
22. A cross of a black chicken (BB) with a white chicken (WW) produce all speckled offspring (BW). This
type of inheritance is known as…
A. Incomplete dominance
C. Codominance
B. Polygenic inheritance
D. Complete dominance
23. When a plant breeder crossed two red roses, 78% of the offspring had red flowers and 22% had white
flowers. According to these results, the allele for red flowers is most likely:
A. Dominant
C. Recessive
B. Sex-linked
D. Codominant
24. If black fur (B) is dominant to white fur (b). What fur color would the alleles “bb” code for?
A. Grey
C. White
B. Brown
D. Black
25. ________ reproduction requires one parent, while ________ reproduction requires two parents.
A.
B.
C.
D.
Asexual, sexual
Sexual, asexual
Animal, bacterial
Single, double
26. Why aren't new species created by animals cross-breeding?
A.
B.
C.
D.
The different animals produce proteins in different ways
Sexual reproduction between species will not produce fertile offspring
The cell walls of the two animals would be made of different chemicals
The reproductive structure of the two different animals would be too different