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Genetics
Test Description: Genetics
Instructions: Answer all questions to get your test result.
1) A red flower with the genotype( RR) is crossed with another red flower (Rr) -What will be the phenotype of the offspring?
A
white
B
red
C
pink
D
unknown
2) If SpongeBob and Gerdy are heterozygous for their blue skin, what is the probability of an offspring with green skin?
A
25%
B
75%
C
100%
D
50%
3) If recessive alleles for dimples(dd) are crossed with another set of recessive alleles for dimples (dd), what are the possible genotypes?
A
DD, Dd, dd
B
DD
C
DD, Dd
D
dd
4) _______________________ are physical or behavioral characteristics that are passed down to organisms genetically. (hair color, freckles, dimples, eye color, straight hair)
A
codominance
B
alleles
C
genes
D
traits
5) What is the process where DNA is copied
A
thymine
B
traits
C
replication
D
pedigree
6) The term used to describe the trait that overshadows and is expressed with a capital letter
A
recessive
B
heterozygous
C
dominant
D
homozygous
7) Shows all the possible combinations of alleles from the parents.
A
pedigree
B
phenotype
C
Punnett Square
D
genotype
8) What two names are used to describe alleles that are the same
A
homozygous, purebred
B
Traits and Recessive
C
Homozygous and Purebred
D
Traits and Replication
9) The term used to describe the letters that represent the different forms of a gene
A
genotype
B
pedigree
C
alleles
D
phenotype
10) The scientific study of heredity
A
hybrid
B
replication
C
genetics
D
traits
11) If a human is a tongue roller (TT) mates with a non tongue roller(tt) - What are the possible phenotypes of the offspring?
A
The offspring can roll their tongue and not roll their tongue
B
None of the above
C
The offspring will be able to roll their tongue
D
The offspring will not be able to roll their tongue
12) ___________________________ involves choosing parents with particular characteristics to breed together and produce offspring with more desirable characteristics.
A
Designer Offspring
B
Chemical Breeding
C
Selective Breeding
D
Physical Breeding
13) When dominant and recessive traits are combined in the heterozygous state that results in the BLENDING of traits, (red and white flower produces a pink flower)
A
multiple alleles
B
incomplete dominance
C
pedigree
D
codominance
14) The term used to describe the physical appearance of the trait (ex. long nose)
A
genotype
B
phenotype
C
Punnett Square
D
trait
15) This contains your genes and is found in the nucleus of the cell
A
genotype
B
traits
C
DNA
D
replication
16) The term used to describe the physical appearance of the trait (ex. long nose)
A
Punnett Square
B
phenotype
C
trait
D
genotype
17) Adenine always pairs with____________________.
A
cytosine
B
adenine
C
adenine
D
thymine
18) Guanine always pairs with ___________________.
A
cytosine
B
guanine
C
adenine
D
thymine
19) The term used to describe the combination of alleles (PP, Pp,pp)
A
genotype
B
pedigree
C
traits
D
multiple alleles
20) What is the trait that hides in the background? It is represented by a lowercase letter. It can only be expressed in homozygous form.
A
dominant
B
incomplete dominance
C
replication
D
recessive
*select an answer for all questions
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