All categories

3 years ago

Name one disadvantage of light microscopes

2 answers:

7 0

Limitations
Light microscopes can magnify specimens or objects up to fifteen hundred times their actual size. This is amazing if you consider objects naturally visible to the eyes. But when you consider microscopic specimens then the magnification is not very impressive. Also the depth of field is confined. For very specific observations of elements or specimens that are smaller than 0.275 microns or smaller than half the wavelength of white light require electron microscope.

Vika [28.1K]3 years ago

5 0

One disadvantage of light microscopes is the limitation. If you are trying to magnify microscopic specimens then it is not very impressive

You might be interested in

DNA wrapped around histone proteins forms a material called ____ which condenses tightly to form _____ that can be seen with a l

makkiz [27]

Answer:

The correct answer will be-

1. Nucleosomes

2. Chromatin

3. Sister chroamtid

4. Centromere

Explanation:

The DNA is a very long molecule which if has to be passed on to the daughter cell as it is will cause problems. So, to reduce problems a cell form tightly packed structure of DNA so that they can be passed easily to the daughter cell.

The packaging of DNA begins with the wrapping of the DNA around histone proteins which forms the 11 nm basic structural units called nucleosomes. The nucleosomes start condensing each other and form 30 nm structure chromatin fibres.

The chromatin fibres undergo replication during S phase which produces an exact copy of the chromatin called sister chromatids bound to each other at a central point called centromere which helps the separation of the chromatids during M phase.

5 0

3 years ago

According to the Shannon Diversity Index, which of the five blocks above, with each containing 36 squares, would show the greate

Semmy [17]

Answer:

so here correct option is A. 5

Explanation:

solution

as number of population groups live in a definite area is called diversity

so here in 1 there is only 2 groups of population

and in 2 there is 3 types of population groups

and in 3 there is 2 type of population groups

and in 4 there is 4 type population group

but they are not not evenly abundant and population of 1 group that is much less

so it might be a foreign population group

so here in 5 there is 4 type of population group which means it has higher diversity compare to other

so here correct option is A. 5

8 0

3 years ago

Before chromosomes can form, DNA must unwind stretch out turn off coil

pshichka [43]

Answer:

I believe the correct answer would be A. Unwind.

Explanation:

DNA must unwind so that it can be copied. After being copied by mRNA, it is then transported to the cytoplasm where the ribosomes translate it to RNA

Hope this helps,

♥A.W.E.S.W.A.N.♥

7 0

3 years ago

What's homeostasis ?

juin [17]

Homeostasis:

The tendency towards a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes

8 0

2 years ago

Describe two major differences between the appearance of granite and basalt

Anna007 [38]

Answer:

The difference between granites and basalts is in silica content and their rates of cooling. A basalt is about 53% SiO2, whereas granite is 73%. Intrusive, slowly cooled inside the crust.

I Hope it Helps:)

8 0

3 years ago

Read 2 more answers