Bio Lab Exam #10: Understanding Genetics

What does a chromosome consist of?

• Lipids and carbohydrates
• Water and minerals
• DNA

• RNA and protein

If an individual possesses 2 identical alleles, they are what?

• Diploid
• Homozygous
• Heterozygous
• Mutation

If an individual possesses 2 different alleles, they are what?

• homogeneous
• diploid
• monogenic
• heterozygous

What is a Genotype?

• Genetic makeup of an organism
• The diet of an organism
• The environment in which an organism lives
• The physical characteristics of an organism

What influences an organisms Phenotype?

• Phenotype and environmental factors
• Genotype and environmental factors
• Genotype and physical appearance
• Environmental factors and behavior

What is a dominant allele?

• A variation of a gene that will produce a certain phenotype, even in the presence of other alleles.
• A recessive allele that only shows its effect in the absence of other alleles
• An allele that has no effect on the phenotype
• A type of gene that is only found in plants

What is a recessive allele?

• An allele that is masked when a dominant allele is present
• An allele that is more common in the population
• An allele that is only found in females
• An allele that is always expressed in the phenotype

What is Mendels Law of Segregation?

• Mendel's Law of Segregation states that traits are inherited independently of each other
• Mendel's Law of Segregation states that offspring acquire both hereditary factors from one parent
• Mendel's Law of Segregation states that traits are always passed on in pairs
• During the production of gametes, the two copies of each hereditary factor segregate so that offspring acquire one factor from each parent.

What is Mendels Law of Independent Assortment?

• Mendel's Law of Independent Assortment only applies to plants, not animals.
• The inheritance of one trait is always dependent on the inheritance of another.
• The inheritance of one trait is not dependent on the inheritance of another.
• It only applies to physical traits, not genetic traits.

What is a Monohybrid Cross?

• Genetic cross between two individuals that are homozygous for multiple traits
• Genetic cross between two individuals that are heterozygous for a single trait
• Genetic cross between two individuals that are heterozygous for multiple traits
• Genetic cross between two individuals that are homozygous for a single trait