Question 1
This question REPLACES the Unit 6 Lesson 9 discussion.
This is worth 4 points of your total weekly recap quiz.
Please do your best, you have unlimited chances for DNA mastery!
7 Magnificently Awesome Science Meme's! | Biology humor, Fun science, Science memes
DNA carries the cell’s genetic information; however, it cannot leave the .
Because of this, it copies part of its nucleotide sequence into a complementary copy of
during the process called .
During this process, the enzyme,
separates the DNA strands.
One strand of DNA acts as the
from which nucleotides are assembled into a strand of RNA.
Each three letter sequence on the mRNA is called a .
The start codon is and the three stop codons are .
Once the mRNA leaves the nucleus, it goes to the to prepare for protein
synthesis, which is called .
During this process, a molecule brings the to the ribosome.
The amino acids are hooked together by bonds.
The tRNA is able to match up to the mRNA by the in its anticodons.
When the codon is reached, the chain is released into the .
Word Bank:
lipidstransponderpeptidemutationrRNAtemplatenucleusamino acidcomplimentary basesstopDEF QRS,XYZtranslationhelicaseribosomeAUGlysosomeenzymeABCstartcarbohydratetRNAproteincytoplasmtranscriptioncodonUAG UGA UAAmRNA
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Question 2
Down's Syndrome is also called Trisomy 21 because affected people have three copies of chromosome 21. How is this possible?
a
Either the sperm cell or the egg cell has one copy of chromosome 21.
b
In a mistake in mitosis, the fertilized egg has two copies of chromosome 21.
c
In a mistake in meiosis, the fertilized egg has two copies of chromosome 21.
d
Either the sperm cell or the egg cell has two copies of chromosome 21.
Question 3
The picture shows a mutation that occurs when cells are exposed to UV radiation.
How can this mutation affect the new cells that are produced using this DNA? Select all that apply.
a
The new cells can become cancerous.
b
The new cells do not undergo mitosis.
c
The new cells shrink because they lose water.
d
The new cells are produced with this mutation.
e
The new cells absorb water and become larger.
f
The new cells do not contain DNA with this mutation.
Question 4
Arrange the mutations in order starting with #1 at the top of list and #5 at the bottom.
Order top to bottom: 1 -2 - 3 - 4 - 5
Reorder answers
1.inversion
Reorder answers
2.duplication
Reorder answers
3.translocation
Reorder answers
4.deletion
Reorder answers
5.insertion
Question 5
Watson and Crick (with Franklin's help) were the first to suggest that DNA is a_____.
a
very short molecule
b
double helix
c
source of genetic material
d
protein
Question 6
Eukaryotic DNA is packed in a chromatin structure, making it harder than prokaryotic DNA to be transcribed. Which proteins are directly involved in the structure of eukaryotic DNA?
arnold protein meme – Stone Strength Systems Gym
a
Actins
b
histones
c
polymerases
d
collagens
Question 7
Read the passage "Superweeds" in the box.
SUPERWEEDS
Due to new technology, scientists have been able to alter the DNA in corn, soybeans, and cotton to make them resistant to the chemical herbicides used to kill weeds. Consequently, millions of acres of United States farmland have been regularly sprayed with herbicides, leading to the development of a herbicide tolerance in weeds. Producers must now use larger amounts of herbicides and find new, stronger chemicals to fight off the herbicide-tolerant weeds.
What was the initial factor that led to the development of herbicide-resistant weeds?
a
genetic engineering
b
artificial selection
c
genetic cloning
d
spontaneous reproduction
b
artificial selection
Question 1
This question REPLACES the Unit 6 Lesson 9 discussion.
This is worth 4 points of your total weekly recap quiz.
Please do your best, you have unlimited chances for DNA mastery!
7 Magnificently Awesome Science Meme's! | Biology humor, Fun science, Science memes
DNA carries the cell’s genetic information; however, it cannot leave the .
Because of this, it copies part of its nucleotide sequence into a complementary copy of
during the process called .
During this process, the enzyme,
separates the DNA strands.
One strand of DNA acts as the
from which nucleotides are assembled into a strand of RNA.
Each three letter sequence on the mRNA is called a .
The start codon is and the three stop codons are .
Once the mRNA leaves the nucleus, it goes to the to prepare for protein
synthesis, which is called .
During this process, a molecule brings the to the ribosome.
The amino acids are hooked together by bonds.
The tRNA is able to match up to the mRNA by the in its anticodons.
When the codon is reached, the chain is released into the .
Word Bank:
lipidstransponderpeptidemutationrRNAtemplatenucleusamino acidcomplimentary basesstopDEF QRS,XYZtranslationhelicaseribosomeAUGlysosomeenzymeABCstartcarbohydratetRNAproteincytoplasmtranscriptioncodonUAG UGA UAAmRNA
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Question 2
Down's Syndrome is also called Trisomy 21 because affected people have three copies of chromosome 21. How is this possible?
a
Either the sperm cell or the egg cell has one copy of chromosome 21.
b
In a mistake in mitosis, the fertilized egg has two copies of chromosome 21.
c
In a mistake in meiosis, the fertilized egg has two copies of chromosome 21.
d
Either the sperm cell or the egg cell has two copies of chromosome 21.
Question 3
The picture shows a mutation that occurs when cells are exposed to UV radiation.
How can this mutation affect the new cells that are produced using this DNA? Select all that apply.
a
The new cells can become cancerous.
b
The new cells do not undergo mitosis.
c
The new cells shrink because they lose water.
d
The new cells are produced with this mutation.
e
The new cells absorb water and become larger.
f
The new cells do not contain DNA with this mutation.
Question 4
Arrange the mutations in order starting with #1 at the top of list and #5 at the bottom.
Order top to bottom: 1 -2 - 3 - 4 - 5
Reorder answers
1.inversion
Reorder answers
2.duplication
Reorder answers
3.translocation
Reorder answers
4.deletion
Reorder answers
5.insertion
Question 5
Watson and Crick (with Franklin's help) were the first to suggest that DNA is a_____.
a
very short molecule
b
double helix
c
source of genetic material
d
protein
Question 6
Eukaryotic DNA is packed in a chromatin structure, making it harder than prokaryotic DNA to be transcribed. Which proteins are directly involved in the structure of eukaryotic DNA?
arnold protein meme – Stone Strength Systems Gym
a
Actins
b
histones
c
polymerases
d
collagens
Question 7
Read the passage "Superweeds" in the box.
SUPERWEEDS
Due to new technology, scientists have been able to alter the DNA in corn, soybeans, and cotton to make them resistant to the chemical herbicides used to kill weeds. Consequently, millions of acres of United States farmland have been regularly sprayed with herbicides, leading to the development of a herbicide tolerance in weeds. Producers must now use larger amounts of herbicides and find new, stronger chemicals to fight off the herbicide-tolerant weeds.
What was the initial factor that led to the development of herbicide-resistant weeds?
a
genetic engineering
b
artificial selection
c
genetic cloning
d
spontaneous reproduction
answer all the questions
Blank 1: nucleus
Blank 2: mRNA
Blank 3: transcription
Blank 4: helicase
Blank 5: template
Blank 6: codon
Blank 7: start
Blank 8: stop
Blank 9: ribosome
Blank 10: translation
Blank 11: tRNA
Blank 12: peptide
Blank 13: peptide bonds
Blank 14: anticodons
Blank 15: stop
Blank 16: protein
Blank 17: cytoplasm
Question 2
Down's Syndrome is also called Trisomy 21 because affected people have three copies of chromosome 21. How is this possible?
a
Either the sperm cell or the egg cell has one copy of chromosome 21.
b
In a mistake in mitosis, the fertilized egg has two copies of chromosome 21.
c
In a mistake in meiosis, the fertilized egg has two copies of chromosome 21.
d
Either the sperm cell or the egg cell has two copies of chromosome 21.
Question 3
The picture shows a mutation that occurs when cells are exposed to UV radiation.
How can this mutation affect the new cells that are produced using this DNA? Select all that apply.
a
The new cells can become cancerous.
b
The new cells do not undergo mitosis.
c
The new cells shrink because they lose water.
d
The new cells are produced with this mutation.
e
The new cells absorb water and become larger.
f
The new cells do not contain DNA with this mutation.
Question 4
Arrange the mutations in order starting with #1 at the top of list and #5 at the bottom.
Order top to bottom: 1 -2 - 3 - 4 - 5
Reorder answers
1.inversion
Reorder answers
2.duplication
Reorder answers
3.translocation
Reorder answers
4.deletion
Reorder answers
5.insertion
Question 5
Watson and Crick (with Franklin's help) were the first to suggest that DNA is a_____.
a
very short molecule
b
double helix
c
source of genetic material
d
protein
Question 6
Eukaryotic DNA is packed in a chromatin structure, making it harder than prokaryotic DNA to be transcribed. Which proteins are directly involved in the structure of eukaryotic DNA?
arnold protein meme – Stone Strength Systems Gym
a
Actins
b
histones
c
polymerases
d
collagens
Question 7
Read the passage "Superweeds" in the box.
SUPERWEEDS
Due to new technology, scientists have been able to alter the DNA in corn, soybeans, and cotton to make them resistant to the chemical herbicides used to kill weeds. Consequently, millions of acres of United States farmland have been regularly sprayed with herbicides, leading to the development of a herbicide tolerance in weeds. Producers must now use larger amounts of herbicides and find new, stronger chemicals to fight off the herbicide-tolerant weeds.
What was the initial factor that led to the development of herbicide-resistant weeds?
a
genetic engineering
b
artificial selection
c
genetic cloning
d
spontaneous reproduction
Question 2:
c. In a mistake in meiosis, the fertilized egg has two copies of chromosome 21.
Question 3:
a. The new cells can become cancerous.
d. The new cells are produced with this mutation.
Question 4:
1. insertion
2. duplication
3. inversion
4. deletion
5. translocation
Question 5:
b. double helix
Question 6:
b. histones
Question 7:
a. genetic engineering
Question 1:
To answer this question, you need to understand the process of DNA transcription and translation. Here are the steps to follow:
1. DNA cannot leave the nucleus, so it copies part of its nucleotide sequence into a complementary copy of mRNA during transcription.
2. During transcription, an enzyme called RNA polymerase separates the DNA strands.
3. One strand of DNA acts as the template from which nucleotides are assembled into a strand of mRNA.
4. Each three-letter sequence on the mRNA is called a codon.
5. The start codon is AUG, and the three stop codons are UAG, UGA, and UAA.
6. Once the mRNA leaves the nucleus, it goes to the ribosome to prepare for protein synthesis, which is called translation.
7. During translation, a tRNA molecule brings the amino acids to the ribosome.
8. The amino acids are hooked together by peptide bonds.
9. The tRNA is able to match up to the mRNA by the complimentary bases in its anticodons.
10. When the stop codon is reached, the protein chain is released into the cytoplasm.
Using this information, you can fill in the blanks in the question as follows:
Blank 1: nucleus
Blank 2: mRNA
Blank 3: transcription
Blank 4: helicase
Blank 5: template
Blank 6: codon
Blank 7: start
Blank 8: stop
Blank 9: ribosome
Blank 10: translation
Blank 11: tRNA
Blank 12: peptide
Blank 13: anticodons
Blank 14: stop
Blank 15: cytoplasm
Blank 16: mRNA
Blank 17: ribosome
Question 2:
To answer this question, you need to understand the concept of trisomy and how it arises. Here are the options to consider:
a) Either the sperm cell or the egg cell has one copy of chromosome 21.
b) In a mistake in mitosis, the fertilized egg has two copies of chromosome 21.
c) In a mistake in meiosis, the fertilized egg has two copies of chromosome 21.
d) Either the sperm cell or the egg cell has two copies of chromosome 21.
The correct answer is c) In a mistake in meiosis, the fertilized egg has two copies of chromosome 21.
Question 3:
To answer this question, you need to understand the effects of UV radiation on DNA. Here are the options to consider:
a) The new cells can become cancerous.
b) The new cells do not undergo mitosis.
c) The new cells shrink because they lose water.
d) The new cells are produced with this mutation.
e) The new cells absorb water and become larger.
f) The new cells do not contain DNA with this mutation.
The correct answers are a) The new cells can become cancerous and d) The new cells are produced with this mutation.
Question 4:
To answer this question, you need to understand different types of mutations. Here are the options to consider:
1. Inversion
2. Duplication
3. Translocation
4. Deletion
5. Insertion
The correct order from top to bottom is:
1 - Inversion
2 - Duplication
3 - Translocation
4 - Deletion
5 - Insertion
Question 5:
To answer this question, you need to know the contribution of Watson, Crick, and Franklin to the understanding of DNA. Here are the options to consider:
a) Very short molecule
b) Double helix
c) Source of genetic material
d) Protein
The correct answer is b) Double helix.
Question 6:
To answer this question, you need to know the proteins that are directly involved in the structure of eukaryotic DNA. Here are the options to consider:
a) Actins
b) Histones
c) Polymerases
d) Collagens
The correct answer is b) Histones.
Question 7:
To answer this question, you need to understand the passage about herbicide-resistant weeds. Here are the options to consider:
a) Genetic engineering
b) Artificial selection
c) Genetic cloning
d) Spontaneous reproduction
The correct answer is b) Artificial selection.