Genetics Test Review

Front

What is a Punnett square?

Back

A Punnett square is a diagram used to predict the outcome of a genetic cross by showing the possible combinations of alleles from the parents.

Front

What does 'W' represent in genetics?

Back

In genetics, 'W' typically represents a dominant allele, which can mask the effect of a recessive allele.

Front

What does 'w' represent in genetics?

Back

In genetics, 'w' typically represents a recessive allele, which is only expressed when two copies are present.

Tags

NGSS.HS-LS4-3

Front

What is the genotype for a heterozygous organism?

Back

The genotype for a heterozygous organism consists of two different alleles, such as 'Ww'.

Front

What is the genotype for a homozygous dominant organism?

Back

The genotype for a homozygous dominant organism consists of two identical dominant alleles, such as 'WW'.

Front

What is the genotype for a homozygous recessive organism?

Back

The genotype for a homozygous recessive organism consists of two identical recessive alleles, such as 'ww'.

Front

What is a phenotype?

Back

A phenotype is the observable physical or biochemical characteristics of an organism, determined by its genotype.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Front

What is the probability of getting a recessive phenotype from a Punnett square?

Back

The probability of getting a recessive phenotype can be calculated by determining the ratio of recessive genotypes to total genotypes in the Punnett square.

Tags

NGSS.HS-LS3-3

Front

What molecule carries genetic information?

Back

DNA (Deoxyribonucleic Acid) carries genetic information in living organisms.

Tags

NGSS.HS-LS3-1

Front

What is the difference between genotype and phenotype?

Back

Genotype refers to the genetic makeup of an organism, while phenotype refers to the physical expression of that genetic makeup.