Chromosomes and Karyotypes - Amoeba Sisters

What type of chromosomes are the Amoeba sisters focusing on in this video?

• Prokaryotic/Bacteria

• Eukaryotic

What are some reasons that DNA is packed into chromosomes?

• To help the cell divide during mitosis

• It has to fit in the nucleus

• Makes it easier to divide

• To make sure the a one cell keeps all of its DNA

Tags

NGSS.HS-LS1-4

When a single CHROMATID duplicates we still call it ONE chromosome because the chromatids are attached to what?

• centromere

• nucleus

• spindle fibers

• apoptosis

Tags

NGSS.HS-LS1-4

What is the purpose of a karyotype?

• Medical Screening

• Surgery

• There isn't a purpose

• To copy and make more chromosomes in the lab

What are homologous pairs?

• 2 chromosomes about the same size, same genes, that you get from mom and dad

• 2 chromosomes that randomly pair up and can be from either mom or dad

• 2 chromosomes that randomly pair up, one from mom and one from dad

• 2 chromosomes that are the same size but with different genes

What type of cell is a fertilized egg? (When the sperm and egg join).

• Diploid

• Haploid

• Neither

• Triploid

How many pairs of autosomes do we have? sex chromosomes?

• 22;1

• 23;2

• 15;8

• 1;22

What type of sex chromosome can mom give to their child? father?

• Only X; X or Y

• X or Y; only X

• Only Y; both X and Y

• They both can give either X or Y.

Who determines the sex of the child?

• Mom

• Dad