How many chromosomes do humans have?
Genetics- Punnett Squares

Quiz
•
Science
•
9th Grade
•
Medium
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13 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
44 chromosomes
46 chromosomes
48 chromosomes
50 chromosomes
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is a Punnett Square?
A diagram used to predict the outcome of a genetic cross by showing the possible combinations of alleles from the parents.
A tool for measuring the height of plants in genetics studies.
A method for calculating the age of fossils in paleontology.
A chart used to track the migration patterns of animals.
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is a gene?
A gene is a segment of RNA that codes for proteins.
A gene is a segment of DNA that contains the instructions for the development of a specific trait or function in an organism.
A gene is a type of protein that regulates cellular functions.
A gene is a molecule that carries genetic information from one generation to the next.
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is genetic mutation?
A change in the DNA sequence that can lead to variations in traits or functions.
A process that only occurs in plants and not in animals.
An irreversible change in the environment that affects genetic material.
A method of cloning organisms for agricultural purposes.
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the law of segregation?
The law of segregation states that traits are inherited independently of one another.
The law of segregation states that during the formation of gametes, the two alleles for a trait separate from each other.
The law of segregation states that dominant alleles mask the effects of recessive alleles.
The law of segregation states that all alleles are expressed equally in the phenotype.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If parent 1 and parent 2 are both heterozygous for a trait, what is the probability that the offspring will express the dominant phenotype?
25%
50%
75%
100%
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the genotype?
The physical appearance of an organism.
The genetic makeup of an organism, represented by the alleles it possesses.
The environment in which an organism lives.
The process of cell division in organisms.
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