Chromosomes

Front

What is a karyotype?

Back

A karyotype is a visual representation of an individual's chromosomes, arranged in pairs and organized by size and shape.

Front

What are the two main ways a karyotype can be abnormal?

Back

Chromosome number and chromosome structure.

Front

Define cytogenetics.

Back

Cytogenetics is the classical area of genetics that links chromosome variations to specific traits.

Tags

NGSS.HS-LS3-1

Front

What percentage of newborns have chromosomal anomalies that produce symptoms?

Back

0.65%.

Front

What is trisomy?

Back

Trisomy is a type of chromosome abnormality where there is an extra chromosome, resulting in three copies of a particular chromosome instead of the usual two.

Front

Define polyploidy.

Back

Polyploidy is the condition of having extra sets of chromosomes.

Front

What is monosomy?

Back

Monosomy is a type of chromosome abnormality where one chromosome is missing from a pair.

Front

What is a chromosomal deletion?

Back

A chromosomal deletion is a type of chromosome abnormality where a segment of the chromosome is missing.

Tags

NGSS.HS-LS3-2

Front

What is chromosomal inversion?

Back

Chromosomal inversion is a type of chromosome abnormality where a segment of the chromosome is reversed end to end.

Front

What is the significance of chromosome structure in genetics?

Back

Chromosome structure is crucial as it can affect gene expression and lead to genetic disorders.

Tags

NGSS.HS-LS1-1