Genes, Chromosomes, and DNA

What is the definition of a Genotype?

• The diagram that shows all the chromosomes of an individual

• the complete set of heritable genes that can be transferred to the offspring from its parents.

• How a trait is expressed (what it looks like or what it does)

• Amount of genes on one chromosome

When an organism has two alleles at a particular locus that are different, the organism is called:

• heterozygous

• purebred

• recessive

• dominant

If a pea plant were homozygous recessive for height, how would it's genotype be represented?

• Tt

• tt

• TT

• tT

What is the definition of Phenotype?

• How a trait is expressed (what it looks like or what it does)

• How many genes on one chromosome

• The diagram that shows all the chromosomes of an individual

• the complete set of heritable genes that can be transferred to the offspring from its parents

The different forms of a gene are known as:

• Alleles

• Chromosomes

• DNA

• Punnett Square

The passing of traits from parent to child is known as:

• gene

• heredity

• RNA

• DNA

____________ is a diagram that can be used to predict the possible outcomes of a genetic crossing.

• Allele Square

• 
  Genetic Square

• 
  Punnett Square

• Mendel Square

How many chromosomes do humans have?

• 32

• 64

• 46

• 23

How many pairs of chromosomes do humans have?

• 23

• 32

• 64

• 12

Which of the following is homozygous dominant?

• rR

• RR

• rr

• Rr