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
Alex17521 [72]
3 years ago
12

Where do new alleles arise from?

Biology
1 answer:
Kazeer [188]3 years ago
6 0

Answer:

Gene mutations provide new alleles, making these mutations the ultimate source of variation. A gene mutation is an alteration in the DNA nucleotide sequence, producing an alternate sequence, termed an allele. Mutations occur at random, and can be beneficial, neutral, or harmful.

Explanation:

You might be interested in
Define of plant and crop residue cover ?​
ElenaW [278]
High-residue cover cropping is an adaption of conservation tillage in which a high-biomass cover crop is grown during the winter and is rolled or cut down prior to no-till or strip-till planting in spring.
6 0
2 years ago
Cells transport molecules into the cell in many different ways. One method is through endocytosis, shown in the model. In endocy
skad [1K]

Plasma membrane is the structure which covers up the uptaken molecule.

<h3><u>Explanation:</u></h3>

Uptaking of nutrients from the surrounding needs to be very appropriate for the cell to obtain nutrition, as well as to maintain cell immunity. In case of simpler molecules like glucose etc, the molecules are taken inside the cell by means of specific channels or transport proteins. In case of complex molecules, cells prefer to perform endocytosis - either phagocytosis for solid ones, and pinocytosis for liquid ones.

When the cell finds something which can be taken in, it projects a fold of cell membrane towards the liquid which surrounds part of the liquid, or fully. This cell membrane then presents a depression which covers up the liquid. Then the margins of the depression come closer and ultimately fuse, leaving the liquid inside the cell enclosed with a part of cell membrane. This then fuses with a primary lysozome to form a digestive vacoule, a secondary lysozome, a residual body, and ultimately gets excreted off the cell.

6 0
3 years ago
Read 2 more answers
Condensation is the process in which water falls as rain, sleet, or snow.<br> True or False?
Ad libitum [116K]

False. Condensation is the process of water vapor turning into liquid water.

8 0
4 years ago
Read 2 more answers
In humans the anterior side of the body is the same as the ventral side of the body. True or false
USPshnik [31]
I think it’s false hope this helps
7 0
3 years ago
How did chloroplasts end up in the producers cell
Oduvanchick [21]

Answer:

they were a paracite

Explanation:

the mitochondrial theorem or something. basically they live in a symbiotic relationship but originally it was two separate life forms. this is true for the mitochondria and chloroplasts

6 0
3 years ago
Other questions:
  • Why is the tunica intima, the innermost layer of arteries and veins, made of epithelial cells?
    14·1 answer
  • There are two different alleles for flower color, P and p. The image shows a purple sweet pea that is labeled with its two allel
    6·1 answer
  • Cell a has half as much dna as cells b, c, and d in a mitotically active tissue. cell a is most likely in
    15·1 answer
  • An angiosperm species is evolving to become insect-pollinated instead of wind-pollinated. What genes are likely to become upregu
    15·1 answer
  • Why is carbon so important to our study of biological molecules
    7·2 answers
  • Which process turns food into energy in any cell? A) photosynthesis <br> Or B) cellular respiration
    13·1 answer
  • Which is the largest gland in the body?
    5·2 answers
  • What kinds of mutations occur at the chromosomal level?
    5·2 answers
  • Help plz help due in 5 min
    15·1 answer
  • Greenhouse gases are measured by their ability to trap outgoing solar radiation and convert it to heat, warming the atmosphere.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!