Unit 2 Review: Genetics

Front

What is incomplete dominance?

Back

A genetic situation in which one allele does not completely dominate another allele, resulting in a new phenotype that is a blend of the two traits.

Front

What is chromosomal deletion?

Back

A type of chromosomal mutation where a segment of the chromosome is lost or deleted.

Tags

NGSS.HS-LS3-2

Front

What is a codon?

Back

A three-nucleotide sequence in mRNA that codes for a specific amino acid.

Tags

NGSS.HS-LS1-1

Front

What is the role of mRNA during transcription?

Back

mRNA copies the DNA sequence and carries the genetic information from the nucleus to the ribosome for protein synthesis.

Front

What is phenotype?

Back

The physical expression of an organism's genetic makeup, including traits like hair color and height.

Tags

NGSS.HS-LS3-2

Front

What is codominance?

Back

A genetic scenario where both alleles in a heterozygote are fully expressed, resulting in offspring with a phenotype that is neither dominant nor recessive.

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 traits.

Tags

NGSS.HS-LS1-1

Front

What is chromosomal translocation?

Back

A chromosomal mutation where a segment of one chromosome breaks off and attaches to another chromosome.

Tags

NGSS.HS-LS3-2

Front

What is tRNA?

Back

Transfer RNA (tRNA) is responsible for bringing amino acids to the ribosome during protein synthesis.

Front

What is chromosomal inversion?

Back

A chromosomal mutation where a segment of a chromosome is reversed end to end.

Tags

NGSS.HS-LS3-2