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
Murrr4er [49]
3 years ago
6

The genetic code is thought to have evolved to maximize genetic stability by minimizing the effect on protein function of most s

ubstitution mutations (single-base changes). We will use the six arginine codons to test this idea. Consider all of the substitutions that could affect all of the six arginine codons.Part A How many total mutations are possible?Part B How many of these mutations are "silent," in the sense that the mutant codon is changed to another Arg codonPart C How many of these mutations are conservative, in the sense that an Arg codon is changed to a functionally similar Lys codon?
Biology
1 answer:
Nikitich [7]3 years ago
8 0

Answer:

The six codons for arginine are the following:

GCA, GCG, GCT, GCC, TCT, TCC

A) Considering the individual bases in each codon, three mutations are possible at each base position. Hence, 3 × 3 × 6 = 54 mutations are possible.

B) Considering the mutations at the 3rd base: 3 × 4 + 1 × 2 = 14 of these mutations are silent mutations.

C) Lysine codons are the following:

TTT, TTC

There are two possible mutations that can give a lys codon.

Hope that answers the question, have a great day!

You might be interested in
A batch of food contaminated with botulism exotoxin, consumed at a family reunion by most of the members of a family, would be a
Cerrena [4.2K]

Answer: Point source

Explanation:

An exotoxin is a toxic substance secreted by bacteria. The botulism exotoxin is the exotoxin secretes by bacterial strain named as Clostridium botulinum.

Point source outbreak is a condition in which people are exposed to the same source of infection from a pathogen. This may occur due to the consumption of a single meal which is being infected by the pathogen. This may lead to incidences of food poisoning, disease and even mass death.

8 0
3 years ago
In which of the following ways does a fertilized egg differ from an unfertilized egg? A) A fertilized egg has more unpaired chro
jok3333 [9.3K]
Answer - D
Gametes always have half the number of chromosomes compared to the somatic cells, hence an unfertilized egg would have half the chromosomes from the mother, and a fertilized egg will contain diploid number of chromosomes. Half of them from inherited from each of the two parents.
7 0
2 years ago
Read 2 more answers
Which of the following vertebrates had the chance to become abundant after the dinosaurs became extinct?
k0ka [10]
I believe the answer is C.
because when the dinosaurs thrived they ate most of the mammals which were small animals but when the dinosaurs went extinct the mammals grew larger in size and started to thrive.
5 0
3 years ago
What all is a brown dwarf considered?​
algol13

Answer:

Brown dwarfs are objects which are too large to be called planets and too small to be stars. They have masses that range between twice the mass of Jupiter and the lower mass limit for nuclear reactions (0.08 times the mass of our sun). ... Brown dwarfs are very dim and cool compared with stars.

Explanation:

7 0
3 years ago
Read 2 more answers
Hola i need sum help pls
kykrilka [37]

Answer:

Oxygen is used to break down sugar and sugars release energy

7 0
2 years ago
Other questions:
  • Which of the following best explains how the structures of chitin and cellulose make them hard to digest
    9·2 answers
  • Is an organic compound that aids enzyme function by combining with an inactive enzyme to form a catalytically active form?
    14·1 answer
  • Soil reaction is _______.
    8·2 answers
  • A certain species of pine tree survives only in scattered locations at elevations above 2800 meters in the western United States
    12·1 answer
  • Most of the water vapor in the atmosphere comes from evaporation of water from oceans. Most of this evaporation occurs where the
    14·1 answer
  • Zara is an excellent violin player. Which part of her brain is responsible for the motor skills involved in playing a violin?
    6·2 answers
  • 1-True or False: Human activities such as nitrogen fertilizer can upset the balance of the nitrogen cycle.
    7·2 answers
  • Using the ecosystem model above, develop a constructed
    6·1 answer
  • I need help with biology midterm. Connexus 9th grade.​
    10·1 answer
  • HELP ASSAAAPPPP PLEASE
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!