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Ugo [173]
3 years ago
6

Which noncoding RNAs are correctly matched with their function?a. Piwi-associated RNAs (piRNAs) reestablish appropriate methylat

ion patterns in the genome during gamete formation.b. Small interfering RNAs (siRNAs) bind to complementary sequences in mRNA and block its translation.c. MicroRNAs (miRNAs) bind to complementary sequences in mRNA and block its translation.
Biology
1 answer:
Oduvanchick [21]3 years ago
3 0

Answer:

all 3

Explanation:

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The ________ is the single shape a protein adopts under physiological conditions. most stable enantiomer primary structure minim
stellarik [79]

Answer:

Native conformation

Explanation:

Native conformation is the correct structure or shape a protein should assume when folded, of which the protein is able to perform its operational function. Outside a proteins native conformation, or when denatured, the protein becomes unable to perform its usual main functions. The native conformation of a protein is the shape it takes in other to be functional.

7 0
3 years ago
The cell membrane of a red blood cell will allow water, oxygen, carbon dioxide, and glucose to pass through. Since other substan
Mrrafil [7]

Answer:

The correct answer would be B. semi-permeable.

Plasma membrane of any cell including red blood cell is semi-permeable in nature as it is made up of lipid bilayer.

It permits the passage of certain substances across the membrane while it blocks other substances.

Gases, small uncharged or non-polar substances such as oxygen, carbon dioxide, et cetera can easily pass through the cell membrane of a cell.

Large or charged molecules such as proteins, sodium ions, potassium ions et cetera can not pass through the cell membrane. They require carrier proteins to pass through the membrane.

4 0
3 years ago
Read 2 more answers
Beadle and Tatum used which of the following organisms to support their one gene - one enzyme concept?
Rama09 [41]

Answer:

Neurospora.

Explanation:

Beadle and Tatum experiment shows one gene one enzyme hypothesis. According to this, a single enzyme is encoded by each gene. This idea is not accepted in today's world.

Beadle and Tatum performed experiment on the neurospora. They chosed neurospora in their experiment because neurospora shows the fast life cycle with alternation of generation. The genetic experiments can be easily performed on neurospora.

Thus, the correct answer is option (c).

8 0
3 years ago
Humans are diploid organisms, and their gametes contain 23 chromosomes. Fill in the blank in each sentence using the terms. Each
USPshnik [31]

Answer:

2n, n, diploid

Explanation:

<em>When the somatic cells of human are in interphase, the ploidy level is denoted as </em><em>2n (diploid)</em><em>. The ploidy level of the human's gametes is denoted as </em><em>n (haploid)</em><em>. The 2n number of a human is </em><em>diploid</em><em>.</em>

Somatic cells are also known as vegetative cells and all somatic cells of humans have diploid number of chromosomes. At interphase, the number of chromosome remains diploid (2n) but the amount to DNA is doubled at the synthesis phase of the interphase.

Human gametes are formed through meiosis - the division of sex cells in the human body. Meiosis results in the halving of number of chromosomes of cells. Hence, all human gametes contain half the number (n = 23) of chromosome of vegetative cells.

Humans are diploid organisms with diploid (2n = 46) number of chromosomes in their vegetative cells.

5 0
3 years ago
Which cytoskeleton fibers are found in cilia and flagella?
kodGreya [7K]

Answer:

Microtubules are found in cilia and flagella .Microtubules are the thickest type of cytoskeleton fiber .Structurally they are hollow tubes that can dissolve and reform very quickly.Functionally, they provide movement to the to the organelles and pull the chromosome to their poles at the time of cell division

Explanation:

3 0
3 years ago
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