(50 Points)

Biology

1 answer:

kicyunya [14]3 years ago

4 0

Answer:

Explanation:

Not 50 pts but... recessive usually means it's the tiny letters.

Dominant traits have capital letter GG or Gg, so the dominant trait is going to show as the phenotype.

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Stem cells are undifferentiated cells that have the ability to continue to grow and divide in their non-specialized state for lo

strojnjashka [21]

Answer:

The correct answer will be option-D

Explanation:

Stem cells are the cells which have the ability to form different types of cells. They differentiate and specializes to perform different functions in the body and thus forms the different cells.

The differentiation and specialization are controlled at the gene level by different patterns of gene expression. The pattern of gene expression is not fully understood during development but research have shown that the gene expression is influenced by the different environmental signals and internal regulators.

Thus, option-D is the correct answer.

4 0

3 years ago

The solutions in the two arms of this U-tube are separated by a membrane that is permeable to water and glucose but not to sucro

DaniilM [7]

Answer:

The correct answer to the question is: the level of liquid in Side A will rise.

Explanation:

Sucrose is formed of two molecules of glucose but the membrane is impermeable to it.
The given membrane is said to be permeable to water and glucose.
Through a semi-permeable membrane, molecules tend to move from a region where its concentration is high to another region where its concentration is low by the process of diffusion until its concentration in the two regions becomes equal. This phenomenon is known as Osmosis.
Concentration gradient of a molecule can be defined as the difference in the concentration of the molecule in two different regions separated by a semi-permeable membrane.
Considering glucose, the concentration of glucose is low in side A (1M) and high in side B (2M), so it will tend to move from side B to side A down its concentration gradient.
Considering sucrose, although its concentration is high in side A (2M) but low in side B (1M), it is unable to move as the membrane is impermeable to it.
Water tend to move from a region where the concentration of solute is low (or water concentration is high) to a region where the concentration of solute is high (or water concentration is low).
Due to the movement of glucose from side B to side A, the concentration of total solute concentration becomes high in side A as compared to side B. Therefore, water would move from side B to side A.
Hence the level of liquid in Side A will rise after sometime.