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Gregor Mendel's Genetics
Test Description: Students will explain the importance of Gregor Mendel to the field of genetics
Instructions: Answer all questions to get your test result.
1) Why did Gregor Mende use pea plants in his experiments?l
A
Peas grow very slowly
B
Peas have characteristics that have two forms
C
Pea reproduction cannot be controlled
D
Peas normally produce very few offspring
2) Which statement best describes an understanding of genetics that would be missing without the work of Mendel?
A
Offspring receive two copies of each allele from each parent
B
The DNA codes for traits would not be shown
C
Some alleles are dominant, and some are recessive
D
The protein codes for traits would not be shown
3) Which statement describes Mendel's hypothesis regarding gametes?
A
A gamete carries one allele for a gene
B
A gamete carries two genes for a trait
C
Some gametes are dominant and some are recessive
D
A gamete can carry multiple alleles for a trait
4) What is a gene?
A
The alternate version of a trait
B
A section of a protein that codes for DNA
C
The visible trait in the F1 generation
D
A section of DNA that codes for a specific trait
5) Which statement describes the offspring of the F1 generation when crossing a pea plant that is homozygous for green seeds with a pea plant that is homozygous for yellow seeds?
A
The offspring will inherit one gene from each parent
B
Each offspring will have a unique set of alleles
C
The offspring will have both green and yellow seeds
D
The green trait is the dominant trait
6) During an experiment, a scientist crosses a pea plant that has purple flowers with a pea plant that has white flowers. The plants that result from this cross in the F1 generation have both purple and white flowers. What can the scientist conclude?
A
Both purple flowers and white flowers are recessive
B
White flowers are dominant over purple flowers
C
All the plants in the F2 generation will have purple flowers
D
The plants in the P generation were not true-breeding
7) What controls traits and inheritance?
A
temperature
B
nucleic acids
C
proteins
D
gametes
8) Nucleic acids offer variability because they contain alternate forms of genes called ___________.
A
protein
B
codons
C
ribosomes
D
alleles
9) A scientist wants to examine a genetic disease in humans. The scientist hypothesizes that the disease can be treated by using gene therapy. Humans take a long time to reproduce and develop, so the scientist will have to .....
A
test the hypothesis for a very long time
B
find a way to make human reproduce faster
C
develop new methods to test the hypothesis
D
give up on testing the hypothesis
10) Scientists often use fruit flies as a method to test hypotheses about human genes. Why are fruit flies advantageous in the study of human inheritance?
A
They can self-pollinate
B
They are very different from humans
C
They reproduce quickly and take up little space
D
They lack nucleic acids
*select an answer for all questions
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