PBS

Replicate the following strand of DNA. (Hint: Match the nucleotide pairs. You did this when you created your DNA molecule.)

AATCATGGA

• AATCATGGA

• TTAGTACCT

• UUAGUACCU

• GGATAUCUA

Tags

NGSS.HS-LS1-1

Which of the following statements are true about DNA. CHECK ALL THAT APPLY!

• DNA contains genetic information.

• The order and sequence of adenine, thymine, guanine and cytosine determine an organism's genetic code.

• All living things have DNA.

• DNA is found on chromosomes located in the nucleus of cells.

Tags

NGSS.MS-LS3-1

NGSS.MS-LS3-2

There is a standard at either end of the gel. The 2nd column from the left is the crime scene DNA. Counting from the Left which suspect can we place at the crime scene? All remaining columns are suspects, no victim DNA here.

• 1 & 9

• 1, 3, 5, 7

• Just 9

• None of them

Which part of the nucleotide is labeled 1?

• nitrogen base

• phosphate

• deoxyribose

Tags

NGSS.HS-LS1-1

Which component of blood is responsible for helping to stop bleeding?

• platelets

• red blood cells

• white blood cells

• plasma

Which component of blood is responsible for carrying oxygen?

• red blood cell

• white blood cell

• platelets

• plasma

Which of the following is not a major component of blood in humans?

• Epithelial cells

• Red blood cells

• White blood cells

• Plasma

• Platelets

If a person’s blood is exposed to anti-B serum and it clumps, but does not clump when exposed to anti-A serum, then the blood is

• A

• B

• AB

• O

Investigators can individualize blood evidence by:

• identifying the DNA from the nucleus of white blood cells

• identifying the DNA from the nucleus of red blood cells

• identifying the DNA from the nucleus of platelets

• identifying the DNA from the nucleus of the serum

DNA looks like:

• a double helix

• a single strand

• a triple helix

• a circle