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20 questions
Complex molecule that carries genetic information that defines an organism's traits. It is stored in the nucleus.
Protein
DNA
RNA
Glucose nucleic acid (GNA)
T - tall and t = short
In the punnett square below, what belongs in the missing square
tt
Tt
Bb
TT
B = brown eyes
b = blue eyes
One brother has genotype BB and the other brother has genotype Bb.
Which statement is true about these two brothers?
They have same phenotype and genotype
They have different phenotypes and genotypes
They have same phenotype, but different genotypes
They have different phenotypes, but the same genotype
The genotype Aa is called . . .
Homozygous recessive
Hybrid
Purebred
Homozygous dominant
Which of the following would be a phenotype?
Aa
red hair
heterozygous
DNA
Which of the following genotypes are Purebred? Select 2 answers.
aA
Aa
AA
aa
Which of the following genotypes is homozygous dominant?
Yy
yY
yy
YY
Which of the following genotypes is homozygous recessive?
Tt
tt
TT
tT
In a flowering plant species, red flower color (R) is dominant over white flower color (r). What is the genotype of any white-flowering plant resulting from this species?
rr
rR
RR
Rr
Which of these characteristics would not be passed on to its offspring?
fur color
length of tail
scars on leg
body size
What is the genotypic ratio of the offspring?
3:1
1:3
1:2:1
2:2
How many alleles are in the genotype for a simple trait?
1
2
3
4
How many alleles (letters) does a child get from EACH parent for each trait?
1
2
3
4
Who is considered the "father of genetics"?
Reginald Punnett
Gregor Mendel
James Watson
Charles Darwin
What are the phenotype percentages of the offspring?
(A-Brown fur color; a-white fur color)
50 % Brown fur and 50% White fur
25 % Brown fur and 75% White fur
75 % Brown fur and 25% White fur
0% Brown fur and 100% White fur
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