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Genetics Review
Test Description: Review of genetic terms and punnett squares for 7th graders
Instructions: Answer all questions to get your test result.
1) An organism's physical apperance is known as
A
genotype
B
chromosomes
C
genes
D
phenotype
2) Genes are found on
A
chromosomes
B
phenotype
C
nuclues
D
DNA
3) What is the chance of having a tall pea plant is T is dominant for tall and t is recessive for short if you cross a homozygous tall plant with a homozygous short plant?
A
100%
B
75%
C
0%
D
50%
4) An organism that has the genotype RR would be called
A
homozygous
B
hybird
C
genotype
D
heterozygous
5) Who is the father of genetics?
A
Thomas Edison
B
Regeniol Punnett
C
Issac Newton
D
Gregor Mendel
6) If a child has freckles and freckles are a recessive trait which of the following could be its parent combination.
A
FF X FF
B
ff X FF
C
FF X ff
D
Ff X ff
7) If you cross a rose that is homozygous dominant for red petals with a rose that is heterozygous for red petals what is the chance of getting a rose with the recessive trait of white petals?
A
25%
B
100%
C
50%
D
0%
8) Which of the following shows a recessive trait?
A
red
B
Aa
C
aa
D
AA
9) Which explains how genes are passed.
A
None of these
B
We get all our genes from mom since she carried us for nine months and we look like her.
C
We get half of our genes from one parent and the other half from the other parent which creates a unique combination.
D
We get all our genes from dad so we look like dad.
10) Traits that are passed from parent to offspring are known as
A
passed traits
B
environmental traits
C
acquired traits
D
inherited traits
*select an answer for all questions
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