Class VIII - Chromosomes

The number of chromosomes in a cell are counted by which feature?

• Genes

• Size

• Centromere

• Telomeres

Abnormal crossover events during meiosis can result in:

• duplications

• deletions

• duplications + deletions

Tags

NGSS.HS-LS3-3

Inversions that include the centromere

• pericentric

• paracentric

Extra copies of entire chromosomes

• aneuploidy

• translocation

• inversion

• paralog

A gene duplicates. The two copies of the same gene are now called:

• orthologs

• paralogs

• inversions

• recombinant

Chromosomal structural variation frequently cause issues in:

• meiosis

• mitosis

• DNA replication

Within a population, some people have several copies of a given gene, while others only have one. This is an example of:

• aneuploidy

• homologous chromosomes

• copy number variation

• redundancy