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
vivado [14]
2 years ago
15

Claim evidence reasoning mutation

Biology
1 answer:
olchik [2.2K]2 years ago
3 0

Explanation:

-increases genetic variation

-increases the fitness of a species

Further Explanation:

All the genetic information within the eukaryotic cell is stored within the nucleus as helical DNA. This DNA is tightly wound around histones as chromosomes. To produce daughter cells during cell division, the chromosomes (total number of chromosomes (2n)) are copied before the cell splits into two daughter cells. This process is known as mitosis, and occurs in cell division and growth processes. Two new nuclei are formed, along with identical cells. These are the same as the parent cell and the chromosome number (2n) is maintained.

Conversely in meiosis, the number of chromosomes (2n) is halved through meiotic divisions, producing 4 (n) germ cells (sperm or eggs), each containing half the number of chromosomes as its parent cell. During the process of cell division, spontaneous changes within the genome can arise. These mutations are errors occur when copies of the DNA within the cell are made; mutations may range from small changes called single nucleotide polymorphisms, to large scale deletions, and additions which span multiple genes. There are two types:

  • somatic: these only occur within certain cells, and arise from environmental factors such as UV light
  • hereditary: occur within germ cells of the parent and later the fertilized egg which forms a zygote; these are present within all cells of the new organism.

Like other events, such as crossing over during mitosis and meiosis, mutations lead to increases in genetic variation. This  variation refers to the genetic characteristics present within a species. Mutations are maintained within cells, as they form new traits called alleles, which may confer adaptations that increase the fitness of a species, along with ensuring survival by conferring a protective advantage

.

e.g. sickle cell anemia, a disease caused by a mutation, confers protection against the disease malaria.

Learn more about mitosis at brainly.com/question/4303192

#LearnWithBrainly

You might be interested in
What is a malformed frog
olchik [2.2K]

Answer:

Frogs with deformities that typically include missing limbs, extra limbs, partial limbs, limbs that are bent and contorted, or limbs that have little muscle, are malformed frogs. Most frogs are usually malformed because of the sensitivity to the environmental factors around them while growing out of the tadpole stage

4 0
1 year ago
Protein supplies approximately __________ percent of a human's typical energy needs.
andreyandreev [35.5K]
A human needs approximately 2-5 percent of protein for the typical energy needed daily. Protein is one of the most important building blocks in the body. It helps the bones, muscles, skin, blood, and cartilage. A humans nails and hair are made of protein. The protein your body uses also repairs tissues and build new ones. 
5 0
3 years ago
Which animal undergoes external fertilization?
zhannawk [14.2K]

Answer:

Among vertebrates, external fertilization is most common in amphibians and fish. Invertebrates utilizing external fertilization are mostly benthic, sessile, or both, including animals such as coral, sea anemones, and tube-dwelling polychaetes. Benthic marine plants also use external fertilization to reproduce.

= Fish

Explanation:

7 0
2 years ago
What are most scientific questions based on
Nookie1986 [14]
Most scientific questions are based off of theory.
6 0
3 years ago
How does photosynthesis in a purple bacterium (Class Anoxyphotobacteria) differ from photosynthesis in an oak tree?
VladimirAG [237]
It differs due to the life cycle of each tree, and the very specific way the trees go.
7 0
2 years ago
Read 2 more answers
Other questions:
  • Helen discovers that her friend Olivia is addicted to meth. Olivia urges Helen not to tell anyone about it. As Helen watches Oli
    15·1 answer
  • Compare and contrast cell communication by nerve signal with cell communication by ion-linked channel receptors... please help f
    6·2 answers
  • While trekking in a forest, Jim saw some saprophytes. What are saprophytes in the food chain? primary consumers primary consumer
    9·2 answers
  • What DNA is an acronym for , what it is made up of and how it’s assembled?
    8·1 answer
  • Determine the<br> phenotype based on<br> the given genotypes.
    12·2 answers
  • HELP PLEASE
    6·1 answer
  • 1. Explain the change in erythrocyte count in the case of anemia
    6·1 answer
  • Which of the following is an internal stimulus?
    13·2 answers
  • Hal's business made $500,000 last year this year is business made 650,000 what is the percentage difference?
    5·2 answers
  • Which of these are amniotes?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!