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]
2 years ago
8

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

Biology
1 answer:
Anit [1.1K]2 years 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
Organisms use what to work, grow, and change?
masha68 [24]
They use sunlight energy, water , and minerals to grow and change
5 0
3 years ago
Read 2 more answers
Which zone is most likely to have insects and very little plant life?
julsineya [31]

Answer:

The right answer is D. The benthic zone

Explanation:

The limnetic and the littoral zone  all get a lot of sunlight so there are a lot of plant life. The pelagic zone hosts a variety of plant species so this cannot be the correct answer. That leaves us with the benthic zone.

Benthic meaning inhabiting bottom areas or substrates. Plant life at the bottom is very scarce but there are a lot of insect species.

8 0
3 years ago
A client in skeletal traction has a nursing diagnosis of Impaired Tissue Integrity: Related to puncture wound; pins.
VladimirAG [237]

Answer:

The client traction weights are resting on the floor.

Explanation:

The immediate action of the nurse should be to reapply the weights to give traction to the fracture. The health care provider must be notified that the weights were lying on the floor, and the client should be realigned in bed. The client's blood pressure is slightly elevated; this could be related to pain and muscle spasms resulting from lack of pressure to reduce the fracture. Oozing of clear fluid is normal, as is the capillary refill time.

DIF: Applying/Application REF: 1060 KEY: Fracture| traction

MSC: Integrated Process: Communication and Documentation

NOT: Client Needs Category: Safe and Effective Care Environment: Management of Care

5 0
3 years ago
Which method would NOT increase your knowledge of a topic? A) Discussing the topic with expert scientists. B) Surveying opinions
Vladimir [108]
B. Because your asking other students who are trying to figure it out themselves 
8 0
3 years ago
Read 2 more answers
The_ is caused by the earths rotation​
kirza4 [7]

Answer:

i would say the gravitational pull of the sun, it could also be the x-axis.

7 0
3 years ago
Other questions:
  • Butterflies and house flies convert ammonia to uric acid in their
    15·1 answer
  • While testing for biological macromolecules in an unknown, you find that it reacts strongly with iodine and the solution immedia
    5·1 answer
  • True or False: Organisms are classified and placed into kingdoms based on their characteristics​
    5·1 answer
  • Which of the choices below is not a function of the urinary system? A. helps maintain homeostasis by controlling the composition
    5·1 answer
  • The outward manifestation of a disease, often influenced by both genes and the environment, is called the disease:
    9·1 answer
  • How are atoms in sugar molecules used to form amino acid and other large carbon-based molecules?
    8·1 answer
  • Help...Which of these tissues would MOST LIKELY be part of the muscular and digestive systems?
    9·2 answers
  • What do you think lies beyond the edge of space? Do you think we can ever know whether or not the Universe is infinite?
    10·1 answer
  • How are displacement distance velocity speed all the same with each other
    13·1 answer
  • III. PICTURE GALLERY
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!