Genetics Unit 5

What does heterozygous mean?

• An organism that has the same genes for a trait (TT or tt)
• An organism that has different genes for a trait (Tt)
• When neither gene is fully dominant; offspring is a mixture of both
• the different forms of a trait (hair color--> brown, blonde, red

Snapdragon flowers come in red, pink and white.  What type of inheritance is this?

• Complete Dominance
• Incomplete Dominance
• Codominance
• Polygenic Inheritance

Which process and type of resulting cells are represented?

• mitosis, gametes
• mitosis, body cells
• meiosis, gametes
• meiosis, body cells

Tags

NGSS.MS-LS3-2

Which of the following cell types is formed by meiosis?

• muscle cells
• skin cells
• sperm cells
• blood cells

Tags

NGSS.HS-LS3-2

Which best describes the process shown?

• mutation in which the DNA content of the gene is ltered
• segregation of sister chromatids
• condensation and segregation of the alleles
• crossing-over which alleles are exchanged

Tags

NGSS.HS-LS1-4

The sex of an offspring is determined by ______________________.

• the mother
• the father
• the mother and the father
• by the environment

Tags

NGSS.HS-LS3-1

Incomplete dominance means that the traits are

• expressed equally
• dominant
• recessive
• blended

Term for homozygous organisms that display two dominant phenotypes at the same time

• codominance
• incomplete dominance
• multiple alleles
• linked genes

Tags

NGSS.HS-LS3-1

What is a phenotype?

• The physical appearance of a trait; what you see

• refers to the genetic makeup of an individual
• An organism that has the same genes for a trait (ex. TT or tt)
• the passing of traits from parent to offspring

The inherited combination of alleles is known as the offspring's

• heredity
• phenotype
• genotype
• redigree

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2