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gayaneshka [121]
4 years ago
15

What is meant by basal level transcription?

Biology
1 answer:
IRISSAK [1]4 years ago
6 0
Basal level transcription is the transcription of genes necessary for some basal functions of the cell (cell respiration, cell metabolism, etc). This basal level transcription is characteristic for every cell in the organism - brain cells, liver cells, muscle cells, etc. It is important that every basal function of each cell in the organism remains same and in the homeostasis. Transcription of genes other from those important for basal functions occurs in tissue-specific, time-specific manner.
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There are three main types of cellular work: chemical, transport, and movement. Most of this work is powered by the transfer of
rjkz [21]

Answer:

phosphorylation

Explanation:

Phosphorylation is the process wherein a phosphate group from a donor compound is removed. The removed phosphate group is then added to the recipient compound. Here, the recipient molecule is said to have undergone phosphorylation. Kinases are the enzymes that catalyze these reactions.

During most of the chemical pathways, phosphorylation of substrates activates them for the subsequent reactions. For example, glucose is being activated when it is phosphorylated into glucose 6-phosphate during the first reaction of glycolysis. The ATP molecule serves as the donor of the phosphate group in this reaction.

4 0
3 years ago
A randomly mating population of 100 dairy cattle contains a recessive allele that causes dwarfism. If there are 16 dwarf calves
hichkok12 [17]

Answer:

Frequency of heterozygous carriers of the allele in the entire herd is 0.48 i.e 48 out of 100

Explanation:

It is given that a recessive allele pair produces a dwarf cow.

Let this recessive allele be represented by "t" and the dominant allele for tall height trait in cows be "T".

Given

Total population of randomly mating cows = 100

Total number of dwarf calves in the population = 16

Frequency of genotype "tt" producing dwarf calves is represented as q^2 in HW equilibrium equation.

Here

q^ 2 = \frac{16}{100} \\q^2 = 0.16

Frequency of recessive allele is equal to "q"

q = \sqrt{0.16} \\q = 0.4

As per first equilibrium equation of HW,

p + q = 1\\p + 0.4 = 1\\p = 1-0.4\\p = 0.6

Frequency of genotype "TT" producing dwarf calves is represented as p^2 in HW equilibrium equation.

p^2 = 0.6^2 \\p^2 = 0.36

As per HW's second equilibrium equation

p^2 + q^2 + 2pq = 1\\

Substituting the given values in above equation, we get -

0.36 + 0.16 + 2pq = 1\\2pq = 1-0.16-0.36\\2pq = 0.48

Frequency of heterozygous carriers of the allele in the entire herd is 0.48 i.e 48 out of 100

8 0
3 years ago
When food leaves the stomach it is:
Darya [45]

Answer:completely digested

Explanation:because the enzymes in your stomach break it down

4 0
3 years ago
Read 2 more answers
Glucose does not efficiently diffuse directly through phospholipid bilayers. However, in the digestive tract, large quantities o
galina1969 [7]

Answer:

Active transport; Passive transport; Passive transport

Explanation:

When concentration of a substance is different on either side of a semi-permeable membrane, the movement of this substance can occur by active or passive transport. Active transport occurs when the substance is moved from the region of its lower concentration to that of its higher concentration. This type of movement uses the energy to move the substance. Since the glucose concentration is higher in the epithelial cells than in the food, it will enter into the cells by the process of active transport.  

The passive movement of substances is driven by concentration gradient. The glucose concentration is lower in extracellular space than epithelial cells, so glucose will be transported into the extracellular space by passive movement.

Likewise, a higher concentration of glucose in extracellular space than blood will move it passively into the bloodstream.

6 0
3 years ago
I need help!!! someone please help me!
makvit [3.9K]

Answer:

b

Explanation:

6 0
3 years ago
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