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muminat
3 years ago
11

What is the difference between a point mutation and a frameshift mutation​

Biology
1 answer:
alexandr402 [8]3 years ago
8 0
Chromosomal alterations are mutations that change chromosome structure. Point mutations change a single nucleotide. Frameshift mutations are additions or deletions of nucleotides that cause a shift in the reading frame.
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Why do you think that root hairs are produced only on the parts of the root system that have stopped growing?
Triss [41]

Answer:

question no 1 answer

A root hair,or absorbent hair, the rhizoid of a vascular plant, is a tubular outgrowth of a trichoblast, a hair-forming cell on the epidermis of a plant root. As they are lateral extensions of a single cell and only rarely branched, they are visible to the naked eye and light microscope. They are found only in the region of maturation of the root. Just prior to and during root hair cell development, there is elevated phosphorylase activity. Plants absorb water from the soil by osmosis. Root hair cells are adapted for this by having a large surface area to speed up osmosis. Another adaptation that they have is a large permanent vacuole.

question no 2 answer

Answer: Stems hold the plant upright and support it. They also transport water, minerals and sugars to the leaves and roots.

hope it helps

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5 0
3 years ago
How do unicellular and multicellular organisms differ?​
svetoff [14.1K]

Answer:

Unicellular organisms- Organisms which have only single cell are called unicellular organisms.

Multicellualr organisms- Organisms with many cells are called multicellular organisms.

7 0
3 years ago
What the consequences would be if the entire water surface was covered with water lilies​
Lemur [1.5K]

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Explanation:

Water lilies protect the organisms under the body of water and provide shade to the plants and organisms underneath. These are very important for organisms, as they also provide a place to rest. But if the entire water surface were to be covered with water lilies, this would be a major problem, because sunlight would have no way of reaching below the surface, and this would decrease oxygen levels for plants and organisms. Without air and sunlight, plants will start to die and organisms of the body of water will also start to die because of no air to breathe. Also, overgrowth of water lilies causes water stagnation and leads to excessive algae blooms. The stagnant water attracts insects like mosquitoes, cockroaches, termites, and more pests which can harm plants and organisms.

7 0
3 years ago
How are the daughter cells produced by meiosis<br>different from those produced by mitosis?​
pav-90 [236]

Answer:

In mitosis, the daughter cells have the same number of chromosomes as the parent cell. But, in  while meiosis, the daughter cells have half the number of chromosomes as the parent.

The daughter cells produced by mitosis are identical, whereas the daughter cells produced by meiosis are different because crossing over has occurred.

Explanation:

6 0
3 years ago
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Anna11 [10]
The answer is A can you help me bavk pls
8 0
3 years ago
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