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12345 [234]
3 years ago
10

How would the genetic inheritance of a gene producing abnormal gap junctions affect muscle tissue?

Biology
1 answer:
lozanna [386]3 years ago
6 0
There are choices for this question:

A. All types of muscle tissue would function normally.
B. All types of muscle tissue would function abnormally.
C. Cardiac muscle and some smooth muscle would function abnormally. Skeletal muscle would be
unaffected.
<span>D. Skeletal muscle would function abnormally. Smooth muscle and cardiac muscle would be unaffected.
</span>
The correct answer is "cardiac muscle and some smooth muscle will function abnormally. Skeletal muscle would be unaffected". This is because cardiac muscle cells communicates with other cardiac muscle cells through gap junctions (seen histologically as intercalated disks). Smooth muscle cells, similarly, also communicate with other smooth muscle cells through gap junctions. Gap junctions are one form of cell to cell interactions, others are desmosomes, tight junctions, etc. Skeletal muscle cells on the other hand, are long cells (and actually called fibers than cells) and does not need to communicate with other cells through gap junctions therefore are unaffected of the disease. 
You might be interested in
Which statement correctly describes the difference between cellular respiration and photosynthesis
Shkiper50 [21]
Cellular respiration produces carbon and it’s a long process involved with the mitochondria, pretty much cellular respiration puts carbon into the air from plants.

When photosynthesis is how plants grow, by taking the sun as a energy source instead of consuming other things for energy

Make sense?

Have a good day
7 0
3 years ago
What is the role of chlorophyll?
Anon25 [30]

Answer:

to absorb light

Explanation:

The energy absorbed from light is transferred to 2 kinds of energy storing molecules. Chlorophyll gives plantsheir green color because it does not absorb the green wavelengths of white light.

5 0
2 years ago
Complex, invertebrate, life forms are common as fossils beginning with marine strata of Cambrian age. How long ago did the Cambr
eimsori [14]

Answer:

The beginning of Cambrian period was about 541 million years ago and ends about 484.5 million years ago.

Explanation:

Cambrian period is a geographical period that appears in Paleozoic Era and lasts at Phanerozoic Eon to the beginning of Ordovician Period and the name was given as most of the sedimentary deposits were found at that period The majority of living organism includes unicellular or some multi cellular complex life forms.

Most live forms were aquatic and arthropods were the most dominant animals in the water that are known by studying the fossil records.The species adapt themselves to change with the environmental variations.

Animals like <em>Protichnites</em> and <em>Climactichnites</em> were found during this period.

The fossil records also suggested the presence of euthycarcinoides that are the extinct arthropod species.

4 0
3 years ago
How is gene theory related to the theory of evolution?
pashok25 [27]
Heredity is the process of passing of traits from one generation to the next generation. Now, this process would not lead to any interesting results (and in turn, the astonishing variety of life on earth), if this process was 100% accurate or faithful. So, even though traits are transferred from parents to their off-springs, the traits are usually marginally altered.
This gives rise to off-springs who are like their parents but with very minor changes. These changes could either be a) beneficial b) harmful (deleterious) or c) neutral.
Harmful changes cause the organism to perish before it can pass on these changes to the next generation. Sometimes a trait that existed in the earlier might become deleterious due to a change in the environment and thus, undergo the process of elimination from the population.
Beneficial changes help the organism to adapt better to its surroundings and live longer and have more off-springs such that these changes are spread to more and more organisms in the population and are eventually get fixed.

A series of such changes in a subsection of a population eventually lead to a new species which is nothing like the older generation. This process of “fixing” or beneficial changes and removal of deleterious traits from a population is called evolution.

Interestingly, the changes that seem the most inconsequential, the neutral changes, are responsible for the bulk of evolution. Neutral changes along with geographical isolation lead to a process called genetic drift, which is considered by many to be the strongest driving force of evolution.
1.8K viewsView upvotes

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djyliett [7]

Answer:

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