True/ False : A karyotype is a type of gene.

• True
• False

True/ False : Cells spend most of thier lifetime in interphase.

• True
• False

Tags

NGSS.HS-LS1-4

Chromatids are

• dense patches within the nucleus
• bacterial chromosomes
• joined strands of duplicated genetic material
• prokaryotic nuclei

Tags

NGSS.HS-LS1-4

The chromosomes in your body

• exist in 23 pairs
• each contain thousands of genes
• are about 40 percent DNA and 60 percent protien
• All of the above.

Tags

NGSS.HS-LS3-1

A student can study a karyotype to learn about the

• molecular structure of a chromosome
• genes that are present in a particular strand of DNA
• medical history of an individual
• chromosomes present in a somatic cell

Which of the following shows the correct sequence of the cell cycle?

• C -> M -> G1 -> S -> G2
• S -> G1 -> G2 -> M -> C
• G1 -> S -> G2 -> M -> C
• None of the above

The phase of mitosis that is characterized by the arrangement of all chromosomes along the equator of the cell is called

• telophase
• metaphase
• anaphase
• prophase

Tags

NGSS.HS-LS1-4

A typical human cell contains 46 chromosomes. After mitosis and cell division, each of the two new cells formed from the original cell

• gets 23 chroosomes
• grows new chromosomes from existing DNA
• gets a complete set of 46 chromosomes
• none of the above

Tags

NGSS.HS-LS1-4

5 : cell cycle ::

• 6 : prophase
• 9 : cytokenisis
• 3 : meiosis
• 4 : mitosis

Tags

NGSS.HS-LS1-4

In plant cells, cytokinesis occurs when

• the chromosomes make exact copies of themselves
• spindle fibers are formed
• a new cell wall forms
• osmotic pressure is too low

Tags

NGSS.HS-LS1-4