CFA #1 DNA Structure & Replication
Authored by Anna Allen
Biology
9th - 12th Grade
NGSS covered
Used 5+ times
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18 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Frederic Griffith discovered transformation in his experiments on mice and Pneumococcus bacteria. He injected the mice with combinations of harmless, R-strain bacteria and disease-causing S-strain bacteria. Which combination of bacteria killed the mice and showed that transformation occurred?
heat-killed R-strain and live S-strain
heat-killed S-strain and live R-strain
heat-killed bacteria of both strains
live bacteria of both strains
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Scientists wanted to learn more about Griffith’s experiment. They extracted a mixture of various molecules from the heat-killed bacteria. They found that ________ no longer occurred when they treated the mixture with enzymes that destroyed (carbohydrates / proteins / RNA / DNA / lipids). This experiment supports the hypothesis that (carbohydrates / proteins / RNA / lipids / DNA) is the genetic material.
translation
transcription
transformation
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Scientists wanted to learn more about Griffith’s experiment. They extracted a mixture of various molecules from the heat-killed bacteria. They found that (translation / transcription / transformation) no longer occurred when they treated the mixture with enzymes that destroyed _______. This experiment supports the hypothesis that (carbohydrates / proteins / RNA lipids / DNA) is the genetic material.
carbohydrates
proteins
RNA
DNA
lipids
Tags
NGSS.HS-LS1-1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Scientists wanted to learn more about Griffith’s experiment. They extracted a mixture of various molecules from the heat-killed bacteria. They found that (translation / transcription / transformation) no longer occurred when they treated the mixture with enzymes that destroyed (carbohydrates / proteins / RNA / DNA / lipids). This experiment supports the hypothesis that _________ is the genetic material.
carbohydrates
proteins
RNA
lipids
DNA
Tags
NGSS.HS-LS1-1
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Which statements describe a bacteriophage? Select all that apply.
It is a type of virus that infects bacteria.
It is a type of bacteria that infects viruses.
It is a virus consisting of a protein coat and a DNA core.
It is a bacterial strain consisting of protein and a DNA core.
6.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
What are three tasks that DNA must be able to perform in all organisms? Select three answer choices.
It must store genetic information.
It must discard foreign genes.
It must instruct cells to produce needed molecules.
It must copy itself.
It must move to locations throughout the cell.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When does transformation occur?
when an organism receives foreign RNA that is transformed into DNA
when DNA is transformed into RNA
when bacteria are killed with heat
when a cell receives foreign DNA that is expressed as a new characteristic
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