Genetics Vocabulary Quiz

What is the basic unit of heredity?

• Chromosome

• Gene

• DNA

• Protein

Explain the difference between dominant and recessive alleles in Mendelian genetics.

• Dominant alleles mask the expression of recessive alleles.

• Dominant alleles are always lethal, while recessive alleles are not

• Dominant alleles are only found in males, while recessive alleles are only found in females

• Recessive alleles are always more common than dominant alleles

What is the difference between genotype and phenotype?

• Genotype is the genetic makeup, while phenotype is the physical characteristics.

• Genotype is only relevant for plants, while phenotype is only relevant for animals

• Genotype refers to physical characteristics, while phenotype refers to genetic makeup

• Genotype and phenotype are the same thing

Give an example of a hereditary trait and explain how it is passed down from parents to offspring.

• Hair texture - It is passed down from parents to offspring through the sharing of hair products

• Height - It is passed down from parents to offspring through the influence of the moon's gravitational pull

• Example: Eye color - It is passed down from parents to offspring through the inheritance of specific genes that determine the production of melanin in the iris.

• Eye color - It is passed down from parents to offspring through the inheritance of specific fashion trends

What is the function of DNA in the context of genetics?

• Regulates body temperature

• Produces energy for the cell

• Carries genetic information and instructions

• Aids in digestion

Explain the role of genes in determining an organism's traits.

• Genes have no impact on an organism's traits

• Genes only determine physical appearance, not other traits

• Genes are only responsible for the organism's behavior, not its physical traits

• Genes contain the instructions for building and maintaining an organism's cells and tissues, which ultimately determine its traits.

How many chromosomes are typically found in a human somatic cell?

• 50

• 12

• 23

• 46

Describe how inheritance of sex-linked traits differs from other genetic traits.

• Sex-linked traits are only found in males, while other genetic traits are found in both males and females.

• Sex-linked traits are determined by environmental factors, while other genetic traits are determined by genes.

• Sex-linked traits are determined by genes located on the sex chromosomes, while other genetic traits are determined by genes located on autosomes.

• Sex-linked traits are only passed down from the mother, while other genetic traits are passed down from both parents.

What is the relationship between chromosomes and inheritance?

• Inheritance is determined by the environment, not chromosomes

• Chromosomes are only found in plants, not animals

• Chromosomes contain the genetic information that is passed down from parents to offspring.

• Chromosomes have no impact on inheritance

Explain the concept of genetic recombination during meiosis.

• The process by which genetic material is duplicated during meiosis.

• The process by which genetic material is lost during meiosis.

• The process by which genetic material is exchanged between non-homologous chromosomes during mitosis.

• The process by which genetic material is exchanged between homologous chromosomes during meiosis.