Just Genetics

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 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

When two haploid sex fuse together during fertilization they become ______________ 

• haploid cells
• meiosis
• mitochondria
• diploid cells

Tags

NGSS.MS-LS3-2

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

A single piece of coiled DNA found in the cells; contains genes that encode traits.

• gene
• chromosome
• trait
• DNA

Tags

NGSS.MS-LS3-1

What characteristic would a child not inherit from parents?

• freckles
• eye color
• hair style
• dimples

Tags

NGSS.HS-LS3-1

There are three alleles for blood type: A, B and O. Types A and B are co-dominant, and O is recessive. Based on phenotypes in the pedigree chart below, what is the genotype of the father, Ricky?

• AA
• AO
• AB
• OO

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Some traits are determined by a single gene; for example, presence of freckles (F) is a dominant trait, and lack of freckles (f) is recessive. Having detached earlobes (D) is a dominant trait, and having attached earlobes (d) is recessive.
Pedro and his wife Rosa have detached earlobes, but Rosa has freckles and Pedro does not. Their daughter Jessica has attached earlobes and does not have freckles. Which of the following genotypes must Rosa have?

• FFDD
• FFDd
• FfDD
• FfDd

Tags

NGSS.HS-LS3-1

In humans, skin tone is caused by 3 genes, each with 2 alleles.  This is an example of

• codominance
• incomplete dominance
• polygenic inheritance
• multiple alleles

In fruit flies eye color is carried on the X chromosome. RED is dominant to WHITE. What is the sex and color of the following: X^rY

• female red
• female white
• male red
• male white

Tags

NGSS.HS-LS3-1