Genetics Flashcard 1

Front

What does each box in a Punnett square represent?

Back

Each box represents an offspring.

Front

What are the possible genotypes for a cross that results in TT = 25%, Tt = 50%, tt = 25%?

Back

TT = 25%, Tt = 50%, tt = 25%.

Front

If you cross a horse with WW (white hair) and a horse with ww (non-white hair), what fraction of the offspring will have white hair?

Back

All offspring will have white hair.

Front

What is a Punnett square?

Back

A special grid used to predict the possible outcomes of different genetic crosses.

Front

What term describes the different forms of a gene?

Back

Allele.

Front

What is the definition of genotype?

Back

Genotype refers to the genetic makeup of an organism, represented by the alleles it possesses.

Front

What is the definition of phenotype?

Back

Phenotype refers to the observable characteristics or traits of an organism, influenced by its genotype.

Front

What is the purpose of a Punnett square in genetics?

Back

To predict the probability of offspring inheriting particular traits from their parents.

Front

What is the difference between dominant and recessive alleles?

Back

Dominant alleles express their trait even if only one copy is present, while recessive alleles require two copies to express their trait.

Front

What does homozygous mean?

Back

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