The correct answer is: transcription and translation, respectively.
The two processes of using DNA to make mRNA and then using mRNA to make a functional protein are(1 point)
Responses
transcription and translation, respectively.
transcription and translation, respectively.
gene regulation and gene expression, respectively.
gene regulation and gene expression, respectively.
gene expression and gene regulation, respectively.
gene expression and gene regulation, respectively.
translation and transcription, respectively.
11 answers
In the cells of multicellular organisms, proteins are assembled in the(1 point)
Responses
mRNA.
mRNA.
nucleus.
nucleus.
ribosome.
ribosome.
chromatin.
Responses
mRNA.
mRNA.
nucleus.
nucleus.
ribosome.
ribosome.
chromatin.
The correct answer is: ribosome.
Which type of regulation in prokaryotes targets the mature mRNA before it can be used in protein synthesis?(1 point)
Responses
post-translational control
post-translational control
translational control
translational control
post-transcriptional control
post-transcriptional control
transcriptional control
Responses
post-translational control
post-translational control
translational control
translational control
post-transcriptional control
post-transcriptional control
transcriptional control
The correct answer is: post-transcriptional control.
Transcription of a gene can be blocked when which factor attaches to the operator?(1 point)
Responses
repressor
repressor
promoter
promoter
RNA polymerase
RNA polymerase
exon
Responses
repressor
repressor
promoter
promoter
RNA polymerase
RNA polymerase
exon
The correct answer is: repressor.
A short pea plant is crossed with a tall, heterozygous pea plant. Use a Punnett square to determine the probability of short offspring.(1 point)
Responses
50%
50%
75%
75%
0%
0%
25%
Responses
50%
50%
75%
75%
0%
0%
25%
To solve this problem using a Punnett square, we first need to define the genotypes of the parent plants:
- Let's denote tall (dominant) as "T" and short (recessive) as "t."
- The short pea plant's genotype is "tt."
- The tall, heterozygous pea plant's genotype is "Tt."
Now we can set up the Punnett square:
T | t
-------------------
t | Tt | tt
-------------------
t | Tt | tt
From the Punnett square, we can see the following outcomes:
- 50% Tt (tall)
- 50% tt (short)
Therefore, the probability of short offspring (tt) is 50%.
The correct answer is: 50%.
DNA Online Practice
Complete this assessment to review what you’ve learned. It will not count toward your grade.
11 of 1311 of 13 Items
Question
Traits can be affected by one gene and can be influenced by the environment.
Human blood types are controlled by two non-Mendelian patterns of inheritance. These two patterns are
(1 point)
Responses
codominance and polygenic inheritance
codominance and polygenic inheritance
codominance and multiple alleles
codominance and multiple alleles
multiple alleles and epistasis
multiple alleles and epistasis
epistasis and polygenic inheritance
epistasis and polygenic inheritance
Remaining Attempts : 3
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Complete this assessment to review what you’ve learned. It will not count toward your grade.
11 of 1311 of 13 Items
Question
Traits can be affected by one gene and can be influenced by the environment.
Human blood types are controlled by two non-Mendelian patterns of inheritance. These two patterns are
(1 point)
Responses
codominance and polygenic inheritance
codominance and polygenic inheritance
codominance and multiple alleles
codominance and multiple alleles
multiple alleles and epistasis
multiple alleles and epistasis
epistasis and polygenic inheritance
epistasis and polygenic inheritance
Remaining Attempts : 3
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page 4 of 4
The correct answer is: codominance and multiple alleles.
Human blood types exhibit codominance (where both alleles in a heterozygote are fully expressed, such as in type AB blood) and are also an example of multiple alleles since there are three alleles (A, B, and O) that determine blood type.
1 answer