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maksim [4K]
2 years ago
15

When comparing liver cells and kidney cells within an organism, many differences can be observed and documented. Which of follow

ing is not a difference between liver cells and kidney cells in the same animal?
Choose one:
A. The different cells have different roles in the body.
B. The different cells are generated during the animal's development.
C. The different cells produce different proteins.
D. The different cells express different genes.
E. The different cells have different DNA.
Biology
1 answer:
Paladinen [302]2 years ago
5 0

Answer:

Option E is not true

Explanation:

All living cells are made up of genetic material (DNA). The DNA sequence in the same organism is same for all the cells of that organism. The difference in the cells is that the genes on the DNA sequence are not expressed at the same time. Some of the genes are silenced while others are expressed during gene regulation. This allows each cell to perform its specific function.

During the animal's development, the cell differentiates to produce the different kinds of cell the organism contains. This differentiation is as a result of expression and silencing of some genes on the same DNA sequence. Hence, different genes are expressed in the different cells which ultimately leads to production of different proteins.

But the DNA is the same across all cells in the organism.

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The stretch hold is a restraint technique:
olchik [2.2K]

Answer:

Option B,

Explanation:

Proper restraint and handling techniques are used while dealing with animals in laboratory. These techniques ease the process of dealing with animals and must be practiced on regular basis even when there is no procedure being performed.  

Unlike other animals cat is the most co-operative animals and it is usually dealt by restraining the body be one hand and head by other hand. Cats can also be restrained by holding the scruff with one hand and then gently holding the hind limbs followed by stretching it.

Hence, option B is correct.

7 0
3 years ago
Describe how facilitated diffusion helps large molecules cross cell membranes. What kinds of proteins are involved?
Dima020 [189]

Yeah yeah so :D,

Large polar molecules can only cross the membrane with the help of protein named channel protein and carrier protein.

So, this both proteins act like a gate, the large molecules enter the protein and the protein let the large molecules in to the membrane. (see the picture so that you can understand more, its carrier protein)

the only difference between channel protein and carrier protein is, channel proteins has fixed shape while carrier protein can flip.

3 0
2 years ago
Read 2 more answers
Using the brake pedal analogy, explain the impact of ONE mutated tumor suppressor gene allele versus TWO mutated tumor suppresso
GrogVix [38]

The tumor suppressors allele is analogous to the brake pedal in a vehicle while cyclins are like the gas pedal. The tumor supressors regulate, negatively, the replication of cells. If the tumor supressor is mutated, this is analogous to the brake pedals of the vehicle being broken,   This means that if two are broken, then the vehicle will be unable to stop and will continue moving. This same way, if tumor suppressors are mutated, the replication of cells will continue unregulated and casue a tumor.  

4 0
3 years ago
Which process can be described as two cell divisions, genetic variation, and haploid cells?
adelina 88 [10]
This process is known as meiosis 
3 0
2 years ago
Read 2 more answers
Can anyone help me please
brilliants [131]

Answer:

a - flower

b - ovule

c - fruit

d - embryo

e - seed

f - seedling

Explanation:

4 0
3 years ago
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