Life sciences Grd 12 Test your self – paper 2 June 2018
Quiz Summary
0 of 9 Questions completed
Questions:
Information
You have already completed the quiz before. Hence you can not start it again.
Quiz is loading…
You must sign in or sign up to start the quiz.
You must first complete the following:
Results
Results
0 of 9 Questions answered correctly
Your time:
Time has elapsed
You have reached 0 of 0 point(s), (0)
Earned Point(s): 0 of 0, (0)
0 Essay(s) Pending (Possible Point(s): 0)
| Average score |
|
| Your score |
|
Categories
- Not categorized 0%
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- Current
- Review
- Answered
- Correct
- Incorrect
-
Question 1 of 9
1. Question
Which ONE of the following is a mechanism of reproductive isolation?
A Extinction
B Breeding at different times of the year
C Mutation
D Independent assortmentCorrectIncorrect -
Question 2 of 9
2. Question
Who formulated the law of use and disuse?
A Lee Berger
B Rosalind Franklin
C Gregor Mendel
D Jean Baptiste de LamarckCorrectIncorrect -
Question 3 of 9
3. Question
Which ONE of the following features is found in BOTH humans and African apes?
A Short upper arms
B Claws instead of nails
C Opposable thumbs
D Small brainCorrectIncorrect -
Question 4 of 9
4. Question
Scientists made an observation that some species of butterfly are
more numerous during wet summers than dry summers. In order to
“investigate this, the next step would be to …”
A record the results.
B state a hypothesis.
C measure the results.
D draw a conclusion.CorrectIncorrect -
Question 5 of 9
5. Question
Which ONE of the following is the CORRECT definition of a species? A group of …A similar organisms that live in the same habitat at the same time
B similar organisms that have the same chromosome number
C organisms that are similar in size, shape and colour”
D similar organisms that are able to interbreed to produce fertile offspringCorrectIncorrect -
Question 6 of 9
6. Question
REFER TO THE DIAGRAM BELOW SHOWING THE INHERITANCE OF HAEMOPHILIA IN A FAMILY.
Which ONE of the combinations in the table below is CORRECT for BOTH individuals 1 and 5?
CorrectIncorrect -
Question 7 of 9
7. Question
REFER TO THE DIAGRAM SHOWING THE INHERITANCE OF HAEMOPHILIA IN A FAMILY AND ANSWER QUESTION BELOW
What is the percentage chance that individuals 3 and 4 would have a child with haemophilia?
A 100%
B 75%
C 25%
D 0%CorrectIncorrect -
Question 8 of 9
8. Question
A dye stains a particular type of nucleic acid red. When this dye was “used to identify which organelles in a cell contain this nucleic acid, only the nucleus and ribosomes stained red. This result shows that the dye stains structures that contain …
A DNA.
B RNA.
C DNA and protein.
D both DNA and RNA.CorrectIncorrect -
Question 9 of 9
9. Question
Study the diagram below.
Which present-day finch is LEAST related to all the others?
A Woodpecker finch
B Large tree finch
C Mangrove finch
D Vegetarian tree finchCorrectIncorrect