AP Bio 14.3 and 4 Flashcard

Front

What is pleiotropy?

Back

Pleiotropy is a genetic phenomenon where a single gene influences multiple phenotypic traits. An example is cystic fibrosis, which affects various organs and systems.

Front

What is the ideal feature of a fetal testing procedure?

Back

The ideal fetal testing procedure should be performed at the earliest time in the pregnancy to ensure timely information and decision-making.

Front

What is polygenic inheritance?

Back

Polygenic inheritance is a type of inheritance where multiple genes influence a single trait. An example is skin pigmentation in humans.

Front

What is Hutchinson-Gilford progeria?

Back

Hutchinson-Gilford progeria is a rare genetic disorder characterized by accelerated aging and early death, often due to coronary artery disease.

Tags

NGSS.HS-LS3-2

Front

What environmental factor can affect flower color in hydrangeas?

Back

Soil pH is an environmental factor that can influence the flower color of hydrangeas, leading to variations such as blue or pink flowers.

Tags

NGSS.MS-LS1-5

Front

What is the significance of a single protein-coding gene mutation in genetic disorders?

Back

A mutation in a single protein-coding gene can lead to specific genetic disorders, as seen in Hutchinson-Gilford progeria.

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-2

Front

What is the difference between incomplete dominance and codominance?

Back

Incomplete dominance results in a blended phenotype, while codominance results in both phenotypes being expressed simultaneously.

Front

What are multiple alleles?

Back

Multiple alleles refer to the presence of more than two alleles for a genetic trait within a population, such as the ABO blood group system.

Front

How does environmental influence affect phenotypic expression?

Back

Environmental factors can modify the expression of genes, leading to different phenotypes, as seen in hydrangea flower colors.

Front

What is the role of genetic mutations in hereditary diseases?

Back

Genetic mutations can lead to hereditary diseases by altering the function of genes, which may result in abnormal traits or health issues.

Tags

NGSS.HS-LS3-2