Mendel and Heredity Flashcard Review

Front

What is Gregor Mendel most well known for?

Back

His experiments with pea plants which showed that certain traits followed predictable patterns of inheritance.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Front

In pea plants, if green is dominant to yellow, what is the probability of offspring being green when crossing a yellow pea pod and a green pea pod, both homozygous?

Back

100%.

Tags

NGSS.HS-LS3-1

Front

If a trait is recessive, how many parents must it be inherited from to be expressed?

Back

Both parents.

Tags

NGSS.HS-LS3-1

Front

What is the phenotype of the offspring when a tall plant (TT) is crossed with a tall plant (Tt)?

Back

100% tall, with 50% homozygous dominant and 50% heterozygous.

Front

What can be concluded about the trait of a pure black coat when crossing a horse with a pure chestnut coat (CC) and a horse with a pure black coat (cc), resulting in all chestnut offspring?

Back

The trait of a pure black coat is recessive.

Tags

NGSS.HS-LS3-1

Front

Define dominant trait.

Back

A dominant trait is one that is expressed in the phenotype even when only one copy of the allele is present.

Front

Define recessive trait.

Back

A recessive trait is one that is only expressed in the phenotype when two copies of the allele are present.

Front

What is a Punnett square used for?

Back

A Punnett square is a tool used by biologists to predict possible genotypes of offspring from a genetic cross.

Front

What does homozygous mean?

Back

Homozygous refers to having two identical alleles for a particular gene.

Front

What does heterozygous mean?

Back

Heterozygous refers to having two different alleles for a particular gene.