1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Elanso [62]
3 years ago
11

A mutant bacterial cell has a defective aminoacyl synthetase that attaches a lysine to tRNAs with the anticodon AAA instead of t

he normal phenylalanine. The consequence of this for the cell will be that:_____________a) none of the proteins in the cell will contain phenylalanine.b) proteins in the cell will include lysine instead of phenylalanine at amino acid positions specified by the codon UUU.c) the cell will compensate for the defect by attaching phenylalanine to tRNAs with lysine-specifying anticodons.d) the ribosome will skip a codon every time a UUU is encountered.e) none of the options will occur; the cell will recognize the error and destroy the tRNA.
Biology
1 answer:
solmaris [256]3 years ago
8 0

Answer:

Proteins in the cell will include lysine instead of phenylalanine at amino acid positions specified by the codon UUU.

Explanation:

Mutation may be defined as the sudden or heritable change in the genetic sequence of the organisms. The mutation can change the phenotype and genotype of the organisms.

The AAA codes for the lysine. The mutation attaches the anticodon AAA instead of normal phenylalanine. The aminonacids AAA will code for the lysine and no phenylalanine is observed in the cell as phenylalanine is coded by UUU and not by AAA.

Thus, the correct answer is option (b).

You might be interested in
Mammalian target of rapamycin pathway mutations cause hemimegalencephaly and focal cortical dysplasia
GuDViN [60]

Yes, it is true that Mammalian target of rapamycin pathway mutations cause hemimegalencephaly and focal cortical dysplasia.

Focal malformations of cortical development, including focal cortical dysplasia (FCD) and hemimegalencephaly (HME), are important causes of intractable childhood epilepsy.

Using targeted and exome sequencing on DNA from resected brain samples and non-brain samples from 53 patients with FCD or HME, we identified pathogenic germline and mosaic mutations in multiple PI3K/AKT pathway genes in 9 patients, and a likely pathogenic variant in 1 additional patient.

Our data confirm the association of DEPDC5 with sporadic FCD but also implicate this gene for the first time in HME. Our findings suggest that modulation of the mammalian target of rapamycin pathway may hold promise for malformation-associated epilepsy.

Learn more about mutations here : brainly.com/question/17031191

#SPJ4

5 0
1 year ago
has anyone completed Lesson 4: Lab: Heating Land and Water CCA? If so can you show me what you put exactly?
Mashutka [201]

No I have not completed it but, I'd be happy to help you with any other questions you might have.

4 0
3 years ago
Chitin is a polysaccharide found in the cell walls of fungi<br> true<br> false
ioda
true,

Hope I helped! ( Smiles )
4 0
3 years ago
4. Using the image below, determine what type of solution the LYSED cell is in.solutionsolutionsolutionHOHO-Н,0LysedNormalShrive
natita [175]

The image shows a red blood cell in different solution. The first image shows an RBC in a hypotonic solutions. The RBC swell and lyse because of the osmotic movement or referred to as hemolysis. The second image shows a normal RBC in an isotonic solution. There is no net change of water to the RBC. The third image shows a shriveled RBC in a hypertonic solution. The water leak out of the RBC briskly than it enters the cell. It is also called as crenated cell.

Answer - Option C - hypotonic solution

6 0
9 months ago
Explain why photosynthesis is important to all living things<br><br> Use at least 5 sentences
faust18 [17]

Explanation:

Photosynthesis is plants taking in water,carbon dioxide, and light to make sugar and oxygen. This is important because all living things need oxygen to survive. All producers make oxygen and sugar for the secondary consumers and then the carnivores eat animals that eat plants.

4 0
3 years ago
Other questions:
  • Air, the gas most commonly used by recreational scuba divers, is composed of:
    15·1 answer
  • How would you classify the relationship between the butterfly fish and the coral polyps?
    7·1 answer
  • Describe the stages of cell respiration.
    6·1 answer
  • An image is 50mm across. It started of 1.25mm across. How many times has it been magnified?
    15·1 answer
  • Which form of algae is most commonly used to wrap raw fish and rice in sushi?
    8·1 answer
  • What do cyclins regulate?
    7·2 answers
  • Please help! In which type of ecosystem would fire most likely be a limiting factor for plant species?
    11·2 answers
  • Offline, create a complete pictogram that represents (1) the various sources of energy; (2) the percentage of global consumption
    11·1 answer
  • Ndndndndkskakaksksksk please help
    13·1 answer
  • In the synthesis of proteins, what is the function of messenger-rna molecules?.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!