Applied Genetics Test Review Spring 2021

When an individual has either two dominant or two recessive genes for a trait, it is said to be ________.

• recessive

• dominant

• heterozygous

A person with two different genes for one trait is ________.

• heterozygous

• homozygous

• pure bred

The combination of genes that represent a trait is called the________.

• phenotype

• genotype

• alleles

The expression of the trait in an individual is called the ________.

• genotype

• phenotype

• alleles

Roan (spotted) cattle and speckled chickens are example of what kind of inheritance?

• codominance

• incomplete dominance

• dominant-recessive

Red flowers crossed with white flowers producing pink flowers is an example of....

• codominance

• incomplete dominance

• dominant-recessive

What is the biological gender of this individual?

• male

• female

• it cannot be determined

What procedure is done to get the cells for a karyotype?

• transcription

• translation

• amniocentesis

Gametes have

• homologous chromosomes.

• two sets of chromosomes

• one allele for each gene.

What error during meiosis causes some individuals to have more or less than 46 chromosomes?

• nondisjunction

• replication

• transcription