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Nesterboy [21]
2 years ago
15

Why are chromosome not visible in most cells expect during cell division?

Biology
2 answers:
Tanzania [10]2 years ago
5 0
<span>They are not visible because the chromatin coils up,shortens,and thickens.</span>
ioda2 years ago
3 0
They are not visible because the chromatin coils up and shortens.

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What heats up the fastest (in order) wet sand, rock, water, dry sand
dedylja [7]
The specific heat capacity represents the amount of energy, in joules, that it takes to raise the temperature of one gram of a given substance by one degree Celsius. Put more simply, the amount of energy it takes to raise a quantity of water by one degree Celsius would raise an equivalent quantity of sand by a little over 14 degrees. Likewise, sand does not need to lose nearly as much energy as water to produce equivalent cooling. Since it "holds" a lot less energy, it cools down much faster than sand.
Indeed, liquid water has an unusually high specific heat capacity. Because it is much less prone to temperature swings than other common substances, large bodies of water often work to moderate temperatures in a region. This helps to explain, for example, why average temperatures fluctuate very little over the year in San Francisco, a city whose climate is heavily influenced by the water that nearly surrounds it.
3 0
3 years ago
Match each lipid with its correct components or description.
Mumz [18]

Answer:

(1) glycerophospholipids ⟶ (C) lipids with phosphate-containing head groups

(2) cerebrosides ⟶ (D) fatty acid linked through an amide bond to the sphingosine C(2)-amine

(3) gangliosides ⟶ (B) anionic sphingolipids containing one or more sialic acid residues

(4) sphingolipids ⟶ (A) built on sphingosine

Explanation:

1) Choline (Fig. 1) is a glycerophospholipid. It is a glycerol-based lipid with a phosphate-containing head group.

(2) Galactosylceramide (Fig. 2) is a cerebroside. It contains a fatty acid linked through an amide bond to the sphingosine C(2)-amine

(3) Gangliosides are glycosphingolipids that contain sialic acid. GQ1b (Fig. 3) is one of the most abundant gangliosides in the human brain. The carboxyl group of the sialic acid is in the ionic form.

(4) Sphingomyelin (Fig. 4) is a sphingolipid. It is based on sphingosine, with a phosphocholine head and a fatty acid chain.  

7 0
3 years ago
why the change in only one DNA base of a gene could result in a different protein produced by the gene?
Ludmilka [50]

It happens because of Point mutation

Explanation:

A point mutation can be understood as when one nucleotide is added, deleted or changed. Through change in DNA structure a gene can be altered and it is called mutation. Point mutation’s other term is insertion as well as deletion. It mostly involves in substitution.

Rarely, Point mutation is responsible for huge change. Basically, two types of point mutation happen. They are transition or transversion mutations.  

7 0
3 years ago
Emergent plants, like cattails and bulrushes, are tall aquatic plants that have roots that lie underwater but stems and leaves t
marin [14]

Answer: B

Explanation: taking the quiz

7 0
3 years ago
"As you move outwards from a tree there will be more plant growth." Explain why the students thought their hypothesis would be c
zaharov [31]

Answer and Explanation:

In the case when you move outwards from a tree so there would be more growth, the reasons are as follows:

1. The block i.e. left and light near tree permits lesser photosynthesis as in the tree

2. But if you move outwards so there would be more light

3. Also it permit plants to photosynthesis that generates greater amount of glucose and proteins for growth

In this way it would be explained

8 0
3 years ago
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