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3 years ago

How could you create texture like a golf ball?

1 answer:

7 0

Answer: B. Repeated Circles

For a, hatching is drawing line repeatedly that intersect each other. For c, stippling is making dots repeatedly to create a art thats made of dots. It could be millions of dots in a paper if its large. And last, B, golf ball has a texture of multiple circles.

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Which enzyme is responsible for ""unzipping"" the dna double helix?

tigry1 [53]

Answer:

Helicase

Explanation:

The DNA double helix is unzipped by the enzyme *HELICASE*. The enzyme breaks the hydrogen bond between the bases thereby causing the strands of the double helicase to unzip. The action of the helicase enzyme uses energy from ATP. The unzipping of the double helix does not occur in a swift move. One end of the DNA molecule with 5'-3' is opened up showing the antiparallel single strands. The end that is opened is termed INITIATION SITE of replication. The opening look like someone standing with legs wide open. The wide opening is called REPLICATION FORK. The single strands of the fork are usually unstable but their stability is maintained by the DNA-binding-proteins. Having opened the double helix, the replication would then continue in the 5'-3' direction of one of the two antiparallel single strands.

5 0

4 years ago

Read 2 more answers

A)Exons 2 and 3 must have the same number of nucleotides. B)Exons 2 and 3 must contain an integral number of codons (that is, th

Thepotemich [5.8K]

Answer:

Statement C is the only one that is necessarily true for exons 2 and 3. It is also true for exons 7 and 8. While statements A and B could be true, they don’thave to be. Because the protein sequence is the same in segments of the mRNA that correspond to exons 1 and 10, neither choice of alternative exons (2 versus 3, or 7 versus 8) can alter the reading frame. To maintain the normal reading frame—whatever that is—the alternative exons must have a number of nucleotides that when divided by 3 (the number of nucleotides in a codon) give the same remainder. Since the sequence of the a-tropomyosin gene is known, it is possible to check to see the actual state of affairs. Exons 2 and 3 both contain the same number of nucleotides, 126, which is divisible by 3 with no remainder.

4 0

3 years ago

How are gene pool and biological evolution are related.

Blababa [14]

Answer:

the composition of a population gene can change over time through evolution

Explanation:

Nature selects

4 0

3 years ago

Biology Photosynthesis questions

Mazyrski [523]

I cannot do the part A task...... I can do the chart (: annddd the questions below..

Glucose: Glucose is a sugar made from sunlight, with the molecular formula C6H12O6.

chloryphll: The energy that is absorbed of the photon is transferred to an electron in a process called charge separation.

ATP: is a product of the first stage of photosynthesis, and it provides energy for the second stage. energy transfer; that is, ATP is able to store and transport chemical energy within cells.

Carbon dioxide: is involved in the production of refrigeration systems, welding systems, water treatment processes

chloroplast: contains the molecule chlorophyll, which absorbs sunlight for photosynthesis.

stomoata: control the flow of gases in and out of leaves.

Thylakoid: A thylakoid is a membrane-bound compartment inside chloroplasts and cyanobacteria. They are the site of the light-dependent reactions of photosynthesis. surrounded by a lunon.

stroma; involved in the Calvin Cycle – carbon fixation, reduction and regeneration. the stroma the supportive tissue of an epithelial organ, tumor, gonad, etc.

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Q2: oxygenic photosynthesis and anoxygenic photosynthesis.

Q3: The general principles of anoxygenic and oxygenic photosynthesis are very similar, but oxygenic photosynthesis is the most common and is seen in plants, algae and cyanobacteria.

Q4: water, light and carbon dioxide, while the products are oxygen and sugars.

Q5: carbon dioxide + electron donor + light energy ==> carbohydrate + oxidized electron donor + water

CO2 + 2H2A + photons ==> [CH2O] + 2A + H2O

7 0

3 years ago

Archaea differ from bacteria in that archaea Group of answer choices Are prokaryotic. Reproduce by binary fission. Lack peptidog

Radda [10]

Archaea differ from bacteria in that archaea lack peptidoglycan.

<h3>What about archaea and bacteria?</h3>

Although archaea lack internal membranes, they do have a cell wall and swim by using flagella.
The difference between bacteria and archaea is that bacteria have an ester-linked cell membrane, while archaea have an ether-linked cell membrane.
Organelles and other internal membrane-bound structures are not present in the cells of bacteria and archaea.
In contrast to eukaryotes, bacteria and archaea do not have a nucleus that separates their genetic material from the rest of the cell.
Similar to Eubacteria, Archaea have a polysaccharide and glycoconjugate-rich cell wall.
The strong cell borders that archaea form despite not having peptidoglycan make them resistant to high internal osmotic pressure.

Learn more about archaea and bacteria here:

brainly.com/question/1475001

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8 0

2 years ago