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
lesya [120]
3 years ago
8

A molecule that can be used as a molecular clock has a neutral mutation rate of one mutation per 5 million years. How many years

ago did two species share a common ancestor if the molecules found in these two species differ by a total of eight mutations?
1.5 million years
10 million years
40 million years
20 million years
Branliest answer and 5.0 rate please just help me
Biology
1 answer:
zubka84 [21]3 years ago
7 0

Answer:

20 million years

Explanation:

If we have a neutral mutation rate of one mutation per 5 million years, then the total of eight mutation between the two different species would be 20 million years. This is because both species will have 4 mutations in those 20 million years, so combined, both by 4, will have 8 mutations between them. So few mutations on so much time will result in two species that are very similar to each other even after 20 million years of evolution, even making them hardly distinguishable, especially if it comes to defining fossil records from them both. A nice example of this are the members of the felidae (cat) family, which are all very closely related, and are almost identical, thus making it extremely hard to distinguish two species of the same or similar size by their fossils.

You might be interested in
John performs an experiment on an electric circuit. He increases the voltage from 25 volts to 50 volts while keeping the resista
ExtremeBDS [4]
<span>Ohm's law deals with the relation between voltage and current in an ideal conductor. It states that: Potential difference across a conductor is proportional to the current that pass through it. It is expressed as V=IR. Therefore, the correct answer would be option 1. The current will increase as well since there is an increase in the voltage.</span>
4 0
3 years ago
Read 2 more answers
A rapid method of speciation that has been important in the history of flowering plants is
Margarita [4]

Answer:

Polyploidy

Explanation:

Polyploidy can be defined as a rapid method of speciation that has been important in the history of flowering plants.

In plants, it involves the possession of two complete sets of chromosomes and it leads to the origin of new species.

Hence, the two sets of chromosomes comprises of triploidy (69 chromosomes) and tetraploidy (92 chromosomes).

8 0
3 years ago
Read 2 more answers
Chromosomes move to poles of cell, uncoil and 2 new nuclei form in do i have it right so far
Georgia [21]
I’m pretty sure it’s in the telophase
7 0
3 years ago
Summarize the process of fertilization and implantation.
Aneli [31]
The process of fertilization involves the deposition of sperms into the vagina to the egg cell during sexual intercourse. Sperms make their way towards the cervix and uterus, and eventually goes to the fallopian tubes. <span>Only a few hundred will remain as they interact with the egg through the use of their heads and movement patterns.

</span><span>The process of implantation happens when the embryo, the fertimized eggs develops inside the fallopian tube after three days, and then travels to the uterus.</span>
7 0
3 years ago
In which of the followi Ways ways are photosynthesis and cellular respiration alike?
attashe74 [19]

Answer:

In photosynthesis carbon dioxide is fixed and oxygen is released. In breathing, oxygen is consumed and carbon dioxide is released, releasing energy.

Explanation:

4 0
3 years ago
Other questions:
  • Which individual is at the highest risk of developing atherosclerosis?
    10·1 answer
  • How is sunlight used in photo synthesis
    8·2 answers
  • Todos los seres vivos realizan la excreción de la misma forma?
    8·1 answer
  • The term ____ is used for genes that have nothing to do with gender yet are carried on the x chromosome
    14·1 answer
  • Taking carbon from the carbon dioxide in the air (called an inorganic molecule) and attaching the carbon to an organic molecule
    12·1 answer
  • You can buy a fish from the pet store
    12·1 answer
  • 27. What substance is a liquid at -200 °C?
    8·1 answer
  • Adaptations of a muscle cell to its functions​
    9·1 answer
  • Please help me outtttt
    10·2 answers
  • Lymphedema is a disorder in which the lymphatic vessels associated with capillary beds are blocked. What will be the long-term e
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!