Punntte Square/Genetics

Front

What does homozygous mean?

Back

Homozygous refers to an organism that has two identical alleles for a trait (e.g., TT or tt).

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What does heterozygous mean?

Back

Heterozygous refers to an organism that has two different alleles for a trait (e.g., Tt).

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 is the probability of homozygous offspring from two heterozygous parents?

Back

The probability of homozygous offspring (TT or tt) from two heterozygous parents (Tt x Tt) is 50%.

Front

What factors can influence gene expression?

Back

Gene expression can be influenced by both genetic variation and environmental factors.

Front

What are alleles?

Back

Alleles are different forms of a gene that can exist for a particular trait.

Front

What is the role of stem cells in cell differentiation?

Back

Stem cells serve as generalized cells that can differentiate into specialized cells.

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What is the genotype?

Back

The genotype is the genetic makeup of an organism, represented by the alleles it possesses.

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What is the phenotype?

Back

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

Front

What is a dominant allele?

Back

A dominant allele is an allele that expresses its trait even when only one copy is present (e.g., T in Tt).