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
Makovka662 [10]
3 years ago
15

Variation in a trait is a required condition for natural selection to act on a population for that trait. Assuming a population

of organisms started with only one form of a trait, what are two ways variation in the trait could be introduced into the population? Explain your answer.
Biology
1 answer:
iVinArrow [24]3 years ago
7 0

Answer:

1. Mutation

2. Epigenetics

Explanation:

1. Mutation occurs when there is a change in an organism's DNA sequence as a result of mistakes in DNA replication or as a result of environmental factors like smoking. The mutation in a single organism can be passed on to other generations hence causing a genetic variation in the population, this obeys the Darwin's law that inherited traits (genetic) are passed on to other generations

2. Epigenetics are changes in gene expression that doesn't involve changes in the DNA sequences unlike mutation. This changes can be passed on to other generations and hence cause a variation in the population. This obeys the Lamarckian evolution that acquired traits are passed on to other generations.

A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light and cigarette smoke.

You might be interested in
What type of dog is this?
dangina [55]
A mutt i believe.......
3 0
3 years ago
Read 2 more answers
If heart rates is 76 beats per minute how many times the heart beat in a day
Vedmedyk [2.9K]

Answer:

109,440 beats per day

Explanation:

75 times 60 (the amount of minutes in an hour) equals 4,560

456p times 24 (the amount of hours in a day) equals 109,440

5 0
3 years ago
Read 2 more answers
The main difference between sub-soil and topsoil is
anyanavicka [17]

Answer:

C. top soil has more organic matter.

Explanation:

It's more fertile than subsoil, due to having more organic matter and because fertilizers are usually added to the topsoil only.

6 0
2 years ago
The lining attached to the lungs is called the ___.
bearhunter [10]
The lining attached to the lungs is called the visceral pleurae.
4 0
3 years ago
Methapyrilene, once an active ingredient in certain over-the-counter sleeping pills, was found to be a potent carcinogen (a subs
g100num [7]

The desirability quotient or DQ for methapyrilene is low.  

Methapyrilene refers to an anticholinergic and antihistamine of the pyridine chemical category that was formulated in the initial 1950s. It was traded under the names Histadyl EC and Co-Pyronil.  

It exhibits comparatively strong sedative influences, to the degree that its main application was as a medicine for insomnia in spite of its antihistamine activity.  


4 0
3 years ago
Other questions:
  • Technician a says oily residue on hoses, components, or fittings indicates an area where refrigerant may be leaking. technician
    13·1 answer
  • Where on earth the convection cycle is the strongest
    8·1 answer
  • Why is liquid water so important for life ? <br><br> I need multiple reasons and why plz
    5·1 answer
  • If a person's blood pressure is too high or too low, how might the other organ systems in their body be affected?
    11·1 answer
  • Use the term osmosis in a sentence
    8·1 answer
  • Please help me in this question please
    12·2 answers
  • PLSSSS HELPPPP I WILLL GIVE BRAINLIEESTTT!!!!!!!!!! PLSSSS HELPPPP I WILLL GIVE BRAINLIEESTTT!!!!!!!!!!
    15·1 answer
  • How do scientists use models to determine the scale properties of objects in our solar system
    9·2 answers
  • How does an autoimmune disease affect the muscular system?
    11·2 answers
  • Why do we need the cell cycle?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!