Complex Inheritance

What pattern of inheritance is shown in this image?

• Codominance

• Incomplete dominance

• Polygenic traits

• Multiple alleles

In the following Punnett Square, R represents red scales and B represents blue scales.  If scale type shows co-dominance in fish, what is the probability of each color in the offspring?

• 50% blue, 50% red and blue, 0% red

• 50% purple and 50% blue

• 100% red and blue

• 0% red, 0% blue, 100% red and blue

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Polygenic inheritance means that _________ control a characteristic

• many genes

• single genes

• 2 genes

• no genes

What do you call the non-Mendelian inheritance pattern where both traits are dominant and both appear in the organism with heterozygous genotype?

• Codominance

• Incomplete dominance

• Polygenic traits

• Multiple alleles

Which of the following best describes complex inheritance?

• Inheritance of traits controlled by a single gene

• Inheritance of traits controlled by multiple genes and environmental factors

• Inheritance of traits that are only influenced by environmental factors

• Inheritance of traits that skip generations

Tags

NGSS.HS-LS3-2

A red flowered plant (RR) breeds with a White flowered plant (WW). The gene for petal color in these plants expresses incomplete dominance.  What percentage of the offspring will have pink (RW) flowers?

• 0%

• 25%

• 50%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

If a child inherits an autosomal dominant disorder, what can we infer about the parents?

• Neither parent has the disorder.

• Both parents must have the disorder.

• At least one parent has the disorder.

• The disorder is not related to the parents' genetics.

Tags

NGSS.HS-LS3-1

This type of inheritance pattern is a MIXTURE of both traits.

• incomplete dominance

• co-dominance

• complete dominance

• recessive pattern

What is the purpose of a Punnett Square in genetics?

• To determine the physical characteristics of an organism

• To predict the probability of an offspring inheriting a particular trait

• To map out the entire genome of an organism

• To identify genetic mutations in an organism

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NGSS.HS-LS3-2

What role do chromosomes play in inheritance?

• They store and transmit genetic information

• They determine how an organism interacts with its environment

• They mutate to create new species

• They replicate to produce energy for the cell

Tags

NGSS.HS-LS3-1