ACW science lesson 1 semester 1

Quiz
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English
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University
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Medium
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are nucleotides?
Small molecules that all bones, muscles, nerves and other body parts contain and they function separately.
Small molecules that are the basic building blocks of nucleic acids (DNA & RNA).
Small molecules that are part of the nervous system of all organisms.
Molecules that are the powerhouse of all living cells.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many genes does your body contain (approximately)?
Between 50 thousand and 80 thousand
Between 2 thousand and 10 thousand
Between 35 thousand and 50 thousand
Between 25 thousand & 40 thousand
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a gene?
A gene is the smallest molecule in the body and it communicates with other cells.
A gene is a basic physical and functional unit of heredity and its a segment of a DNA.
A gene is a molecule that is part of a cell and it stores energy (in sugars) that a cell can use.
A gene is a part of a DNA that makes the DNA twist into a double helix.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a mutation?
A mutation is when the hair or eye colour changes.
A mutation is when body parts change due to environmental pressure.
A mutation is a change in the sequence of the nucleotides in the DNA.
A mutation is a change in the body when its cells multiply.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What kind of atoms the basis of nucleotides build from?
Calcium, carbon, hydrogen, nitrogen and phosphorus.
Carbon, oxygen, hydrogen, nitrogen and phosphorus.
Oxygen, nitrogen, hydrogen, and phosphorus.
Oxygen, carbon, nitrogen and phosphorus.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is DNA called a double helix?
Because a DNA molecule is built of two linked strands that resemble a twisted ladder in a helix-like shape.
Because DNA is a long molecule with many nucleotide and when it is in function it twists into a double helix-like shape.
Because DNA is in every organism and it is a long molecule that is made of many strands.
Because DNA is built as a long molecule and when it is in the cell it gets twisted.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many differing nucleotide parts, called bases, are in the DNA?
6
8
4
12
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