Genetics Definitions
The topic of Genetics contains some new terms that students must be familiar with. This test is designed to assist students with testing their knowledge of the terminology covered so far.
- 1.
The term allele means:
- A.
A different form of a gene
- B.
The name given for a trait
- C.
A letter used to describe a a trait
Correct Answer
A. A different form of a gene -
- 2.
A chromosome is:
- A.
A structure that contains RNA
- B.
A healthy human has 47 chromosomes
- C.
A structure formed of a very long piece of DNA
Correct Answer
C. A structure formed of a very long piece of DNA -
- 3.
The term homozygous means:
- A.
Two different copies of the allele
- B.
Two copies of the same allele
- C.
Always two copies of the dominant allele
Correct Answer
A. Two different copies of the allele -
- 4.
Translation is the process where:
- A.
A DNA strand is converted to a mRNA strand
- B.
A protein is created from the mRNA strand
- C.
A mRNA strand is moved from the nucleus to the ribosome
Correct Answer
B. A protein is created from the mRNA strand -
- 5.
The term phenotype refers to:
- A.
Is the observable trait of an individual
- B.
Is the alleles of the trait of an individual
- C.
Is what the individual looks like
Correct Answer
A. Is the observable trait of an individual -
- 6.
A gene is:
- A.
A length of DNA that contains instructions for making a protein
- B.
A length of DNA that contains instructions for making a chromosome
- C.
A length of DNA that contains instructions for making a RNA
Correct Answer
A. A length of DNA that contains instructions for making a protein -
- 7.
Which of the following is the correct nucleotide pairings for DNA?
- A.
Adenine and Cytosine
- B.
Adenine and Uracil
- C.
Adenine and Thymine
Correct Answer
C. Adenine and Thymine -
- 8.
Which of the following statements is correct when describing mRNA?
- A.
A double stranded molecule that travels out of the nucleus and is translated at the ribosome
- B.
A single stranded molecule that travels out of the nucleus and is translated at the ribosome
- C.
A single stranded molecule where Adenine is replaced with Uracil
Correct Answer
B. A single stranded molecule that travels out of the nucleus and is translated at the ribosome -
- 9.
The term genotype refers to:
- A.
What the individual will look like
- B.
The traits of an individual
- C.
The genetic make up of an individual
Correct Answer
C. The genetic make up of an individual -
- 10.
Choose the INCORRECT statement from the following:
- A.
Humans have 46 pairs of chromosomes
- B.
A zygote is the first cell formed when the sperm and egg meet
- C.
DNA stands for deoxyribonucleic acid
Correct Answer
A. Humans have 46 pairs of chromosomes -
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Current Version
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Jan 25, 2013Quiz Edited by
ProProfs Editorial Team -
May 23, 2011Quiz Created by
Bvandergert
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