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fenix001 [56]
3 years ago
5

A point mutation occurs in a sex cell of an adult rabbit. The gene affected by

Biology
1 answer:
Soloha48 [4]3 years ago
6 0

This point mutation in the sex cell of the rabbit by the heart muscle building protein would cause death of the rabbit.  

Explanation:

Adult transgenic rabbits are used to represent human race to experiment different diseases and syndromes of humans. One such experiment is conducted to identify the cardiovascular disease and cardiac rhythm syndrome, known as LQT syndrome.

This disease leads to the cardiac death of patient the human mutants- KCNQ1, KCNH2, which causes this syndrome were represented by rabbits. This gene is overexpressed in the rabbit’s cardiomyocytes through the heavy chain of β-myosin. The LQT2 affected rabbits showed more prolongation of QT and increase in death.

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Explain how a starfish's body plan and anatomy enables invertebrate to perform the essential functions it needs to survive.
Vladimir [108]
Invertebrates are known as creatures that do not have backbones. Even though these creatures do not have backbones, they have been uniquely designed in order to survive. According to studies, most of these creatures are found in the sea and one of them is the Star Fish or also called as the Sea Star. Starfish's functions and ability to survive is not the same like other animals which make them unique in a different way. The starfish's body is hard and bony for protection purposes and they exist in a variety of colors for camouflage. Their essential functions in order to survive are as follows:
-The Ability to Regenerate: Starfishes have the ability to grow damaged and lost limbs or even their entire body as long as the center part is still present and intact. And this is their way of reproduction as well.
-Having Tube Feet: Its arms are covered with a suction-like tiny cups of tube feet. This unique design of the starfishes enables them to move and secure themselves, especially on rocks and ocean floors.
-Unique Feeding Ability: Sea Stars don't have mouths nor teeth to ingest food. Rather, these creatures have the ability to push open or turn their stomachs out and digest its food. After digestion, their stomachs retract back to their bodies. 
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3 0
3 years ago
(what organelle is this) Passive transport is taking place across this thin cell covering causing the muscle cells to contract.
deff fn [24]

Answer:

This question appears incomplete

Explanation:

This question appears incomplete. However, <u>the cell organelle involved in transportation of molecules in the cell is the </u><u>cell membrane</u>. This cell membrane can be said to be cause of several forms of transportation in and out of the cell - this is because the membrane is a selective barrier. While some substances/molecules move through diffusion by moving with the concentration gradient (as in the case of passive transport, others move against the concentration gradient requiring energy to cause the transportation (as in the case of active transport).

7 0
3 years ago
Aquaporin-1 exists in the cell membrane as a tetramer. Each monomer is a water channel that can hold 4 molecules of water at a t
mr_godi [17]

Answer:

16

Explanation:

Aquaporin 1 is a protein coding which exists as a tetramer {a tetramer is an oligomer formed from four monomers}. It functions as a molecular water channel proteins and also a non-selective cation channels. Each monomer in a complete aquaporin complex can form four (4) water molecules. As such, there will be sixteen (16) molecules of water present in an Aquaporin-1 Complex.

3 0
3 years ago
Refer to the following five terms to answer the following questions. Choose the most appropriate term for each phrase. Each term
soldi70 [24.7K]

Answer: 3. C. mitochondrion

Explanation:

Mitochondrion in a cell is defined as the powerhouse of the cell which provide energy to the whole cell.

A mitochondrion is has a membranous layer and bean-shaped organelle that is the “energy transformer” of the cell. They contibute to the  biochemical processes of the cell called cellular respiration. They works as a digestive system which takes nutrients, breaks them into several energy rich molecules for the cell.

Hence, the correct answer is 3. C. "mitochondrion".

8 0
3 years ago
HELP FAST PLEASE ASAP PLEASE
ExtremeBDS [4]

Answer:

B number is your answer thas correct

6 0
3 years ago
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