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
Alenkasestr [34]
1 year ago
8

How does apoptosis prevent babies from being born with webbed fingers and toes

Biology
1 answer:
Anit [1.1K]1 year ago
6 0

Answer:

In many organisms, programmed cell death is a normal part of development. In some cases, apoptosis during development occurs in a very predictable way: in the worm C. elegans, 131131131 cells will die by apoptosis as the worm develops from a single cell to an adult (and we know exactly which ones they are)^1

1

start superscript, 1, end superscript!

Apoptosis also plays a key role in human development. For instance, as we saw in the introduction, your hand started out as a paddle-like block of tissue when you were an embryo. The block was “carved” into fingers by apoptosis of the cells in between the developing fingers.

Microscope images from a scientific paper, showing a developing mouse paw. The cells between the developing digits are stained by a marker that indicates apoptotic cells.

Microscope images from a scientific paper, showing a developing mouse paw. The cells between the developing digits are stained by a marker that indicates apoptotic cells.

Image modified from "Duplication of digit 4 is preceded by reduced apoptosis and expanded chondrogenesis in the posterior limb mesenchyme," by Farin et al. ^2

2

squared, CC BY 4.0.

This process occurs in all sorts of vertebrate species that have finger- or toe-like digits, and less apoptosis results in more webbing between the digits. Sometimes, if a small mistake happens during finger or toe development, apoptosis may be incomplete (leading, for instance, to fused toes).

Other examples of apoptosis during normal development include the loss of a tadpole’s tail as it turns into a frog, and the removal of unneeded neurons in as neural circuits in the brain are “wired.”

Apoptosis can eliminate infected or cancerous cells

In some cases, a cell can pose a threat to the rest of the body if it survives. For instance, this may be the case for cells with DNA damage, pre-cancerous cells, and cells infected by viruses. If these cells undergo apoptosis, the threat to the rest of the organism (such as cancer or spread of a viral infection) is removed.

When a cell’s DNA is damaged, it will typically detect the damage and try to repair it. If the damage is beyond repair, the cell will normally send itself into apoptosis, ensuring that it will not pass on its damaged DNA. When cells have DNA damage but fail to undergo apoptosis, they may be on the road to cancer.

Explanation:

You might be interested in
All proteins carry the genetic codes that determine the structure and function of an organism.
olga55 [171]
False

Not always, some proteins are used in a variety. <span>Protein channels are needed to transport substances because it accelerates the transport process. Very few substances enter or leave cells without being attached to a transport protein. Different types of substances require different types of proteins to transport them. Protein channels transport water or ions downwards and ATP-powered pumps transport molecules or ions upwards. ATP generates energy to transport the molecules upwards. </span>
8 0
3 years ago
Skeletons of early vertebrates were composed of cartilage instead of bone. Which characteristic does cartilage share with notoch
dsp73
I think B correct me and report me if I'm wrong.
7 0
3 years ago
Read 2 more answers
Which regions of the nephron function independently of hormonal control for the most part?
alexgriva [62]

Answer:

Renal corpuscle, proximal tubule, and loop of henle.

Explanation:

Renal corpuscle is blood filtering part of the nephron which consist of Bowman's capsule and glomerulus. It works independently of hormonal control and filter the blood circulate through this glomerulus.

Proximal tubule is the component of nephron which starts from the renal pole of Bowman's capsule to the loop of henle and it involves in the selective reabsorption of glucose, peptides, water and other nutrients from tubule to the blood. It works independently of hormonal control.

Loop of henle is the U shaped part of nephron which is responsible for absorption of water and sodium chloride from urine to back into blood circulation. It is also work independently of hormonal control.

3 0
3 years ago
Read 2 more answers
All of the following describe possible results of competition between two species except A) competitive exclusion. B) aposematic
boyakko [2]

Answer:

B) aposematic coloration

Explanation:

The species constantly compete between each other, some because they occupy the same niche int he food chain, others even though they are in different niches tend to destroy each other, and some just avoid each other and partition the resources. This often results in partitioning of the resources between different species, when usually they are active in different parts of the day and avoid each other. Also, it is common that some of the species is more competitive, so that will result in a decline of the other species, or if the species are on the same level of competitiveness, then usually both species have declines in numbers to some optimal level. The aposematic coloration though is not part of the competition between the species. It is a type of coloration that warns the other species that the species that possesses it is either not good for eating, or it has a weapon that can harm them, thus they should avoid it and leave it alone.

4 0
3 years ago
Need help pls if you can
Taya2010 [7]

Answer:

60

Explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • In a desert ecosystem, coyotes and rattlesnakes both eat the same type of mouse as a primary part of their diets. Recently, coyo
    6·1 answer
  • Which event most accurately describes cytokinesis?
    11·2 answers
  • true or false a mountain with Forest on one side and desert on the other is exhibiting evidence of the rain shadow effect​
    11·1 answer
  • Why isnt interphase part of mitosis
    14·2 answers
  • What are the main characteristics of a vertebrates
    9·1 answer
  • The total number of electrons in a neutral atom of every element is always equal to the atom’s
    11·1 answer
  • 2. Name three plants that reproduce by vegetative propagation.
    15·1 answer
  • Which disappears more rapidly from a population, a deleterious dominant allele or a deleterious recessive allele?
    5·1 answer
  • Consideras que existen diferentes formas de reproducción? Justifica tu repuesta
    6·2 answers
  • Proteins can not be transported by carrier proteins through cell membranes because
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!