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
Lelechka [254]
3 years ago
9

What is the basis for the use of a molecular clock to determine the absolute time of evolutionary change?

Biology
1 answer:
dedylja [7]3 years ago
7 0

Nucleotide substitutions in a gene occur at a relatively constant rate.

A nonsynonymous substitution is a nucleotide mutation that alters the amino acid sequence of a protein. Nonsynonymous substitutions differ from synonymous substitutions, which do not alter amino acid sequences and are (sometimes) silent mutations.

You might be interested in
Can someone make me a storyline about protist? It doesn’t have to be a whole story but something I can go off of?
Vitek1552 [10]

Answer:

Protists are a diverse collection of organisms that do not fit into animal, plant, bacteria or fungi groups. While exceptions exist, they are primarily microscopic and made up of a single cell (unicellular), according to the educational website CK-12.

4 0
2 years ago
Help ASAP Please Figure 5
Mashutka [201]
Sleet
Might be wrong lol sorry if it is
3 0
3 years ago
How might a persons current shopping habits affect the quality of the environment 100 years in the future?
m_a_m_a [10]

Answer:

If many people buy plastic products, these products will still be around 100 years from now, piled in landfills or other storage sites.

Explanation:

7 0
3 years ago
A mutation exists in a gene that controls hair growth on the middle digit of human fingers. some people have mid-digital hair, w
makkiz [27]
The best explanation that best predicts what happens to the trait over time is that the incidence of mid-digital hair will not change because it offers no selective advantage or disadvantage. A mutation is a sudden, spontaneous random change that occurs in the genetic make up of an organism. The presence or absence of mid-digital hair is controlled by a single gene with two alleles, and the allele H is dominant. 
4 0
3 years ago
Which type of speciation occurs when a physical or chemical sign is required before a species will mate? temporal behavioral hyb
Karolina [17]
The correct answer is:  [B]:  "behavioral" .
____________________________________________________
6 0
3 years ago
Other questions:
  • Match the term to the correct system.
    5·1 answer
  • Which of the following structures is NOT found in bacteria?
    12·2 answers
  • A man is exposed to large amounts of ultra Violet radiation while sunbathing at the beach. This exposure causes a genetic change
    12·1 answer
  • Which factors contribute to the extinction of a species
    6·1 answer
  • how do the structure and location of a prokaryotic chromosome differ from that of a eukaryotic chromosome
    10·1 answer
  • Which term best describes the movement of water thought cell membrane
    10·1 answer
  • I'm trying to do this cell Environments assignment and I'm confused
    15·2 answers
  • The difference between the mean value of a trait in the entire population, and the mean value of the individuals that breed succ
    15·1 answer
  • I need help. thank you
    13·2 answers
  • Hi .........................................
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!