Mendelian Genetics

Multiple Choice

What is a gene?

• A gene is a type of protein found in cells.
• A gene is a segment of DNA that encodes information for the synthesis of proteins.
• A gene is a segment of RNA that regulates cell division.
• A gene is a carbohydrate that provides energy.

Multiple Choice

What are alleles?

• types of chromosome

• different genes

• different versions of the same gene

• genetic mutations

Multiple Choice

How are dominant and recessive alleles represented?

• Dominant alleles are represented by lowercase letters and recessive alleles by uppercase letters.
• Both dominant and recessive alleles are represented by uppercase letters.
• Dominant alleles are represented by numbers and recessive alleles by symbols.
• Dominant alleles are represented by uppercase letters and recessive alleles by lowercase letters.

Open Ended

How many alleles do you have for each gene?

Open Ended

What does it mean to be heterozygous for a gene?

Multiple Choice

What is a phenotype?

• A phenotype is the internal biological processes of an organism.
• A phenotype refers to the evolutionary history of a species.
• A phenotype is the observable, physical traits of an organism.

• A phenotype is the genetic makeup of an organism.

Multiple Choice

On a punnett square, where do the alleles of the parents go?

• The alleles of the parents go in the center of the Punnett square.
• The alleles of the parents go on the top and left sides of the Punnett square.
• The alleles of the parents are placed randomly within the Punnett square.

Multiple Choice

What do the genotypes in the middle of the punnett square represent?

• The genotypes represent the possible offspring genotypes resulting from the parent cross.

• The genotypes show the dominant traits of the grandparents.
• The genotypes indicate the environmental factors affecting the offspring.
• The genotypes represent the physical traits of the parents.

Draw

In pea plants, tall height (T) is dominant over short height (t). Cross a heterozygous tall plant (Tt) with a short plant (tt). Use the punnett square to show the possible genotypes of the offspring.