Melanin Storyline Review: Natural Selection/Inheritance/Proteins

Front

What is the definition of a recessive trait?

Back

A recessive trait is a genetic trait that is expressed only when two recessive alleles for the same characteristic are present.

Front

What is the role of DNA in protein synthesis?

Back

DNA holds the genetic instructions for the development and functioning of living organisms, including the code for making proteins.

Front

What are the genotypes of the parents in a Punnett square that shows RR and WW?

Back

The genotypes of the parents are RR (homozygous dominant) and WW (homozygous recessive).

Front

What do proteins do in the body?

Back

Proteins perform a variety of functions including building tissues, acting as enzymes, and supporting immune function.

Front

What is the purpose of a Punnett square?

Back

A Punnett square is used to predict the genotypes of offspring from a genetic cross.

Front

What does it mean if a trait is dominant?

Back

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

Front

What is the difference between genotype and phenotype?

Back

Genotype refers to the genetic makeup of an organism, while phenotype refers to the observable characteristics.

Front

What is the function of RNA in protein synthesis?

Back

RNA acts as a messenger carrying instructions from DNA for controlling the synthesis of proteins.

Front

What is the significance of the shaded individuals in a genetic diagram?

Back

Shaded individuals typically represent those expressing a particular trait, often indicating a recessive trait.

Front

How do mutations affect protein synthesis?

Back

Mutations can change the sequence of DNA, potentially altering the structure and function of the resulting protein.