Question 1
Which RNA carries amino acids to the ribosome during translation?
a
mRNA
b
drRNA
c
rRNA
d
tRNA
Question 2
Which table correctly describes the difference between DNA and RNA?
A.
B.
C.
D.
a
A
b
B
c
C
d
D
Question 3
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:
complimentary basesmutationpeptidenucleuslysosomemRNAcodonlipidstRNAstophelicaseenzymerRNAstarttranslationtranscriptioncytoplasmribosomeproteinamino acidUAG UGA UAAAUGcarbohydrateABCtransponderDEF QRS,XYZtemplate
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Question 4
Farmers across many centuries have used selective breeding (artificial selection) to enhance certain qualities in their crops. Which of the following qualities would most likely be selected for in breeding?
a
decreased nutrient composition
b
decreased harvest production
c
resistance to harmful pests
d
bioluminescence for attraction to fireflies
Question 5
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 6
How can this individual be identified?
a
normal male
b
male with Down syndrome
c
normal female
d
female with Down syndrome
Question 7
A child is born with cystic fibrosis, an inherited recessive disorder. No one in the family (on either side) for several generations is known to carry the gene or have the disorder. How can this be explained?
a
The genetic disorder formed from the mother's poor nutrition and prenatal care.
b
There was a mutation in the DNA, either in one of the gametes or the fertilized egg.
c
The child contracted the illness from another child when he was born.
d
The child developed the disorder when he was born; it is a result of a birth defect.
answer 1-6
Answer 1: The RNA that carries amino acids to the ribosome during translation is tRNA. To find the answer to this question, one can consult a biology textbook or conduct a quick internet search on the role of different types of RNA in protein synthesis.
Answer 2: The correct table that describes the difference between DNA and RNA is option D. To find the answer to this question, one can refer to a biology textbook or conduct a quick internet search on the differences between DNA and RNA.
Answer 3:
Blank 1: nuceleus
Blank 2: transcription
Blank 3: helicase
Blank 4: template
Blank 5: codon
Blank 6: AUG
Blank 7: UAA, UAG, UGA
Blank 8: cytoplasm
Blank 9: translation
Blank 10: ribosome
Blank 11: tRNA
Blank 12: peptide
Blank 13: anticodons
Blank 14: stop
Blank 15: protein synthesis
Blank 16: tRNA
Blank 17: peptide chain
To answer this question, one can fill in the blanks by understanding the concepts of DNA replication, transcription, and translation. The information can be found in biology textbooks or online resources on molecular biology.
Answer 4: The quality that would most likely be selected for in breeding is c) resistance to harmful pests. This answer is based on the fact that farmers would want their crops to be resistant to pests in order to maximize their harvest and reduce crop loss.
Answer 5: The mutation can affect the new cells in the following ways: a) The new cells can become cancerous, d) The new cells are produced with this mutation. To determine the effects of a mutation on cells, one can refer to a biology textbook or consult scientific articles on the topic of mutations and their consequences.
Answer 6: The individual can be identified as b) male with Down syndrome. To identify an individual with Down syndrome, one would need to recognize the physical characteristics associated with the syndrome. This information can be found in medical resources or by consulting a healthcare professional.
Answer 7: The most likely explanation for the child being born with cystic fibrosis despite the absence of the gene or disorder in the family is option b) There was a mutation in the DNA, either in one of the gametes or the fertilized egg. Mutations can occur spontaneously and can lead to the development of genetic disorders even without a family history of the disorder.