Traits and Heredity

What is heredity?

• The process of photosynthesis in plants

• The study of rocks and minerals

• The practice of meditation

• The passing on of traits from parents to offspring.

Explain the difference between dominant and recessive traits.

• Recessive traits are expressed when an individual has at least one recessive allele.

• Dominant traits are only expressed when an individual has two dominant alleles.

• Dominant traits are always physical characteristics, while recessive traits are always related to behavior.

• Dominant traits are expressed when an individual has at least one dominant allele, while recessive traits are only expressed when an individual has two recessive alleles.

How are traits passed from parents to offspring?

• Through the exchange of money

• By sharing the same birthday

• Through the transmission of genetic information

• Through the consumption of certain foods

Tags

NGSS.MS-LS3-2

What is a genotype?

• The physical characteristics of an organism

• The environment in which an organism lives

• The behavior of an organism

• Genetic makeup of an organism

What is a phenotype?

• The genetic makeup of an organism

• The process of natural selection

• Observable characteristics resulting from genotype and environment interaction

• The study of inherited traits

Give an example of a dominant trait in humans.

• Brown eyes

• Left-handedness

• Green eyes

• Blonde hair

Give an example of a recessive trait in humans.

• Left-handedness

• Tall height

• Blonde hair

• Blue eyes

Explain the concept of genetic variation.

• Genetic variation is the result of environmental factors on an individual's DNA.

• Genetic variation is the same DNA sequence among individuals within a population.

• Genetic variation is the differences in physical traits among individuals within a population.

• Genetic variation is the differences in DNA sequences among individuals within a population.

What is a Punnett square and how is it used in genetics?

• A Punnett square is a type of dance used to determine genetic traits

• A Punnett square is a type of food used to represent genetic traits

• A Punnett square is a diagram used to predict the possible genetic outcomes of a cross between two individuals.

• A Punnett square is a type of board game used to study genetics

How do environmental factors influence traits?

• Traits are only influenced by genetics

• Environmental factors can influence traits through processes such as gene expression, epigenetics, and adaptation.

• Environmental factors have no impact on traits

• Adaptation has no role in trait development