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
anygoal [31]
3 years ago
9

Early geneticists wondered how only four nucleotides can specify the sequence of 20 amino acids in proteins. They hypothesized t

hat there must be a code that linked the nucleotide sequence in a gene to the amino acid sequence in a protein. Each nucleotide code is called a codon. Today we know that there is a genetic code in which __________nucleotide(s) code(s) for each amino acid.
Biology
1 answer:
Ivenika [448]3 years ago
4 0

Answer:

Early geneticists wondered how only four nucleotides can specify the sequence of 20 amino acids in proteins. They hypothesized that there must be a code that linked the nucleotide sequence in a gene to the amino acid sequence in a protein. Each nucleotide code is called a codon. Today we know that there is a genetic code in which __________nucleotide(s) code(s) for each amino acid.

3

4

1

2

Explanation:

3 is the answer. 43 or 64 is the number of possible 3-letter codes that can be formed.

more than one codon can codes for the same amino acid

You might be interested in
Which of these organisms are herbivores?
r-ruslan [8.4K]

primary \: consumer

7 0
3 years ago
The cell membrane plays an role in the transport of substances into and out of cells. Which is an example of passive transport?
ivann1987 [24]

glucose entering a cell through proteins in the membrane requiring the use of ATP

6 0
3 years ago
If 1000 f2 offspring are obtained, how many flies of each phenotype are expected?
aniked [119]
<span>In Drosophila + indicates wild-type allele for any gene, m is mahogany and e is ebony. Female parents are m+/m+ and males are +e/+e. F1 are m+/+e, all wild type. F1 females are crossed with me/me males - the test cross. Offspring will be : non recombinant m+/me, mahogany wild type or +e/me wild type ebony. OR recombinant me/me mahogany ebony or ++/++ wild type. As the two genes are 25 map units apart, the percentage of recombinants will be 25% and therefore percentage parental types will be 75%. 75% 1000 is 750. There are two parental types, so you would expect 375 of each. Therefore, you would expect 375 m+/me and 375 +e/me. 25% of 1000 is 250 split between two recombinants =125 of each. Therefore you would expect 135 me/me and 125 ++/++</span>
7 0
3 years ago
Please Help! Will Give Brainliest:
klio [65]
<h3>Hello there i hope you are having a good day :) Your question : In the human body, stem cells in the bone marrow produce a variety of blood cells. What process produces these cells? Answer : A. Undifferentiated cells divide to produce differentiated cells.</h3><h3>Hopefully that helps you ❤</h3>

3 0
3 years ago
How does continental drift affect living organisms? check all that apply. view available hint(s) check all that apply. it may ca
Dmitriy789 [7]
The continental drift affects living organisms in that it causes changes in climates which puts selective pressure on organisms, causes changes in habitats, including when large amounts of shallow marine habitat were lost in the formation of Pangea. Additionally continental drift may cause an increase or decrease in competition among different species and also it happens so slowly that it does not affect living organisms
6 0
3 years ago
Read 2 more answers
Other questions:
  • Which source should be avoided when conducting scientific research?
    5·1 answer
  • I NEED HELP QUICK, PLEASE!!!
    11·2 answers
  • The poison dart frog can have bright green, red, blue, or yellow skin that secretes a poisonous substance when it feels threaten
    14·2 answers
  • When an animal cell is placed in a hypotonic solution, _____.
    12·1 answer
  • In which type of cell are these structures found?
    13·2 answers
  • What did Renaisance writers write about?​
    14·1 answer
  • Scarlet gilia (Ipomopsis aggregata) usually has red flowers in an inflorescence of up to 250 flowers. In certain populations in
    7·1 answer
  • What are the advantages of Mempro ™ liposome technology?
    8·1 answer
  • Mohammed listed the steps that occur when a solar cell generates electricity.
    15·2 answers
  • _____ is a bad conductor of heat and electricity​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!