BACE PCR, Seq, Restriction Es, ELISA quiz

When a positive + result occurs in an ELISA test, then one could conclude that...

• a + result always means illness

• the antibody is present

• it is a false + and no illness

• an enzyme is present

What is a primary antibody?

• the second antibody used to detect foreign particle
• particle produced by the antigen
• the first antibody used to detect foreign particle
• second cell produced by the macrophage

What does the S in ELISA stand for?

• substrate
• stationary
• sorbent
• starch

Why is there an enzyme attached to the secondary antibody?

• They link to the proteins used

• The catalyze reactions

• They provide a colormetirc indication of antigen exposure

• They are used to detect DNA

The role of an antibody is to

• Mark antigens for destruction

• Provide a weapon that will stick to and invade surrounding cells

• To attack your own body

• Promote and attract potential pathogens

Why is a positive and negative control necessary in the setup of ELISA?

• positive controls are equal to negative controls 
• ELISA is subject to errors; if controls fail the results are untrustworthy
• ELISA is a well run test that typically does not need controls
• negative and positive controls are needed to exclude all results

Match the following

• builds the complimentary DNA strand

• Helicase

• Indicates whee DNA replication begins

• Primase

• "unzips" the DNA

• Polymerase

• bonds DNA fragments together

• Ligase

After replication, each strand has ​ (a)   new strand(s) and ​ (b)   old strand(s).

• one
• two
• zero

Match the following

• G₁

• cell division

• Mitosis

• cell growth

• M Phase

• division of nucleus

• S

• DNA Replication

• Interphase

• G₁, S, G₂

Answer explanation

Tags

NGSS.HS-LS1-4

When does the cell’s DNA replicate?

• G1 phase

• S phase

• G2 phase

• M phase