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
12345 [234]
3 years ago
14

For plants and other organisms to develop differences among their respective species the alleles of their genes must contain var

iations. What is the original source of these variations?
A) Mutation
B) Crossing over
C) Random fertilization
D) Independent assortment
Biology
1 answer:
olasank [31]3 years ago
8 0

A) <u>Mutation</u> is the original source of variations for plants and other organisms  which develops differences among their respective species

Explanation:

Genetic variation leads to the natural differences between each individual and among individuals of a species. The main cause for this variation is due to alleles that cause variations in the composition of genes or the DNA sequences.  

A mutation is a genetic variation which leads to the creation of a new allele in a species population. Each variation in the DNA sequence leads to an allele formation and each allele leads to a difference in character or trait between individuals since they are the alternate version of the original genes.  

Although genetic variations could be brought about by crossing over, random fertilization, or independent assortment; mutation is the original source because it provides the basic raw material for all the evolutionary changes.

You might be interested in
Why is it important to know a person blood type before a blood transfusion?
lord [1]
Different types of blood contact different kinds of antigens and antibodies. For example, Type A blood has A antigens and B antibodies, antibodies being the thing that fights B antigens. Type B blood has B antigens and A antibodies. So if someone with type B gets transfused with Type A blood, the person's antibodies will attack the new blood.
4 0
3 years ago
A student was observing slides of cell division. In one of the slides, he noticed loosely coiled chromatin depicting DNA duplica
tatuchka [14]

The correct answer is:

S phase

Explanation:

S phase (synthesis phase) is the part of the cell cycle in which DNA is replicated, occurring between G1 phase and G2 phase. Accurate and accurate DNA replication is needed to counter genetic exceptions which often lead to cell death or disease. DNA replication occurs during this S (synthesis) phase. Gap 2 (G2): During the gap between DNA structure and mitosis, the cell will remain to grow and design new proteins.

5 0
3 years ago
Read 2 more answers
Why compost fertilizer is organic fertilizer​
Elodia [21]

Answer:

Compost fertilizer can only be organic if the products used in the fertilizer are organic.

Explanation:

Meaning it’s made out of organic fruits and veggies.

7 0
3 years ago
bacteria communicates and exchange genetic information through extensions of their cell walls called​
Inessa05 [86]

Answer:

Conjugative Pili

Explanation:

Conjugative Pilli:allows for the transfer of DNA between bacteria, in the process of bacterial conjugation.

7 0
3 years ago
What does it mean to maintain a stable internal environment?
Anna11 [10]

Answer: It means to guide and regulate chemical and physical parameters to keep your body or environment in a constate state for proper functioning.

Explanation: This is called homeostasis. The body has systems in place to monitor its components such as cells, organs and any other molecule needed to maintain life and good health. The body needs to maintain its temperature at 37°C, pH of blood at 7.4, water balance, osmotic pressure, growth rate and tissue repairs whenever it dictates the need, danger of infection or injury.

All of these form an integral part of a healthy living organism and it needs to always be stable, regulated and monitored. This is called maintaining homeostasis.

8 0
3 years ago
Other questions:
  • Which is a monomer of a protein?
    10·2 answers
  • What products of digestion are transported by the lymphatic system and enter the blood circulation without passing through the l
    6·1 answer
  • What is the main function of a phospholipids in a cell
    12·2 answers
  • What does number 9 contain? A. Money B. Power C. Respect D. Chlorophyll
    13·2 answers
  • Select the characteristics of life. Choose ALL that apply.
    14·1 answer
  • What is the correct classification of 18x?
    13·1 answer
  • Answer these pleaseeee
    6·1 answer
  • The vitamin required specifically in carbohydrate metabolism is _______________. folate riboflavin thiamin niacin
    9·1 answer
  • Water reclamation is a process that is used to rid wastewater of
    12·1 answer
  • A stronger force can cause a greater change in velocity.<br> O True<br> O False
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!