Genetics and Punnett Square Practice Quiz

What is Mendelian genetics?

• The study of how traits are inherited from parents to offspring based on the principles discovered by Gregor Mendel.

• The study of how traits are inherited from unrelated individuals based on the principles discovered by Gregor Mendel.

• The study of how traits are inherited from grandparents to grandchildren based on the principles discovered by Gregor Mendel.

• The study of how traits are inherited from siblings based on the principles discovered by Gregor Mendel.

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NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is a Punnett square used for?

• To analyze the genetic makeup of an individual.

• To study the inheritance of acquired traits.

• To predict the possible genotypes and phenotypes of offspring in a genetic cross.

• To determine the gender of an offspring.

Which of the following is an example of an inheritance pattern?

• 1, 2, 3, 4

• Dominant, Recessive, Co-dominant, Polygenic

• Autosomal dominant, autosomal recessive, X-linked dominant, and X-linked recessive

• A, B, C, D

What is the difference between genotype and phenotype?

• Genotype refers to the physical characteristics or traits of an organism, while phenotype refers to the genetic makeup.

• Genotype refers to the genetic makeup of an organism, while phenotype refers to the physical characteristics or traits that are expressed as a result of the genotype.

• Genotype and phenotype are the same thing.

• Genotype refers to the physical characteristics or traits of an organism, while phenotype refers to the behavior of the organism.

What does it mean to be homozygous?

• Having no alleles for a particular gene.

• Having one allele for a particular gene.

• Having two identical alleles for a particular gene.

• Having two different alleles for a particular gene.

What does it mean to be heterozygous?

• Having no alleles for a particular gene.

• Having three different alleles for a particular gene.

• Having two different alleles for a particular gene.

• Having two identical alleles for a particular gene.

Which of the following is an example of an inheritance pattern?

• Genetic inheritance

• Acquired inheritance

• Environmental inheritance

• Behavioral inheritance

What is the probability of two heterozygous individuals producing an offspring with a recessive phenotype?

• 75%

• 10%

• 25%

• 50%

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NGSS.HS-LS3-3

What is the probability of two homozygous recessive individuals producing an offspring with a dominant phenotype?

• 1

• 0.25

• 0.5

• 0

Which of the following is an example of a genotype?

• CC or cc

• DD or dd

• AA or aa

• BB or bb