You've been tasked to study the movements of condensed chromosomes during cell division.
You have access to a magnifying glass, a standard light microscope, a scanning electron
microscope and a transmission electron microscope. Which piece of equipment would you choose
and why? Also why would you NOT choose the others? (max 50 words)
Answers
In order to see something as small as a chromosome, It is necessary to employ the use of a scanning electron microscope.
The question states that we wish to study the movements of condensed chromosomes during cellular division. This means that we will need a scope capable of not only looking inside of a cell but even inside of the nucleus of a cell, an extremely minute space.
Logically, a magnifying glass will not be able to accomplish this given that it only allows us to see macroscopic elements, many hundreds of times bigger than what we wish to observe. We run into similar limitations with standard light and transmission microscopes. Although these allow us to see things on a microscopic level, they fall short of the desired capability.
Though the transmission microscope can see even smaller elements than a standard light microscope, both are limited to the surface of cells. The SEM or scanning electron microscope, on the other hand, allows the user to see elements down to 0.1 nanometers in size. Given that chromosomes are between 10 and 30 nanometers in size, we can use this microscope for the desired study.
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Related Questions
Question 6 of 10
Which statement about natural resources is true?
O A. Societies have found alternatives for them, so natural resources
have lost all their importance.
B. Some societies find natural resources important, while others find
no need for them.
O C. While all societies use natural resources, they do not use them in
the same way.
D. All societies have the same natural resources available to them.
Answers
Answer:
C
Explanation:
everyone needs natural resources, but different societies located in different areas may have different purposes. for example trees can be used to make tables or paper to a modern society. yet to a native society it can be more commonly used to make tools
Which description best represents the organelle; Nucleus
Answers
Marking as brainliest
Answers
Answer:
Z = 2 and A = 4
Explanation:
What was the first industrial use of biotechnology?
A. Dissolving boulders with vinegar
B. Dissolving pearls with vinegar
C. Preserving food with vinegar
D. Drying food with a low fire
Answers
Answer:
C
Explanation:
Drying food with low fire
When the rock above a cave collapses, it forms a
Answers
Answer:
collapse dolines
Explanation:
Answer:
A shakehole (or a sinkhole) - it can form an entrance to the cave, or block it entirely.
Explanation:
Explain why amylase will not speed up the breakdown of proteins
Answers
Answer:
Amylase will not speed up the breakdown of proteins because it is the enzyme used for the breakdown of carbohydrates. Its active site will not fit the substrate of a protein molecule. To speed up the breakdown of proteins, protease is used insted.
We used a microscope marked ×10 on the eyepiece and ×25 on the objective to observe an object that is 0.5 mm long. How long will this object be when observed under the microscope?
Answers
Answer: 2500 i think don't count me on it though sorry if it is wrong.
Explanation:
is a chemical substance that is produced in substantial quantities, and is reasonably expected to be released in to the environment in substantial quantities a risk trigger, standard trigger, or an exposer trigger?
Means that the EPA has made a determination that a chemical or biological agent may present an unreasonable risk both in toxicity and exposure.
a. exposer trigger
b. standard trigger
c. risk trigger
Answers
Answer:
c-risk trigger
Explanation:
The Risk Evaluation process is the second step, following Prioritization and before Risk Management, in EPA’s existing chemical process under TSCA. The purpose of risk evaluation is to determine whether a chemical substance presents an unreasonable risk to health or the environment, under the conditions of use, including an unreasonable risk to a relevant potentially exposed or susceptible subpopulation. As part of this process, EPA must evaluate both hazard and exposure, exclude consideration of costs or other non-risk factors, use scientific information and approaches in a manner that is consistent with the requirements in TSCA for the best available science, and ensure decisions are based on the weight-of-scientific-evidence.
What is the best definition of sexual selection? Group of answer choices Selection that results in any type of difference between the sexes. Selection related to any aspect of offspring production. Selection on the form and structure of gametes. Selection that arises as a consequence of competition for access to mates.
Answers
Answer:
Selection that arises as a consequence of competition for access to mates
Explanation:
Sexual selection is how somenone will choose the best partner to breed, give birth and raise the next generation
The inside of a eukaryotic cell is
divided into the...
A. nucleus and cytoplasm
B. organ and organelle
C. cell membrane and cell interior
D. top and bottom
Answers
The inside of a eukaryotic cell is divided into the; A. nucleus and cytoplasm.
What are Eukaryotic cells?Eukaryotic cells are the one that have a well-defined membrane-bound nucleus to house genetic material in it. Eukaryotic cells also have other membrane-bound organelles.
The Cell membrane makes the selectively permeable barrier for the exchange of material with surroundings as; it separates the cytoplasm from the surroundings.
here liquid phase present between the cell membrane and nucleus is called cytoplasm.
The inside of a eukaryotic cell is divided into the; A. nucleus and cytoplasm.
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Which plane separates your chest from your spine?
inverse
Answers
Answer: a frontal plane.
Explanation: The frontal plane or coronal plane that divides the body in ventral and dorsal part.
Which of the following is an extremely dense form of connective tissue?
Answers
Answer:
the breast tissue
Explanation:
Tendons and Ligaments are the extremely dense form of connective tissue.
What are dense connective tissues?Dense connective tissue is also known as dense fibrous tissue which is a form of connective tissue composed mostly of fibers. These fibers are made of type I collagen which are rows of fibroblasts, the fiber-forming cells that make up the fibers, filled in between the collagen strands.
Tendons and ligaments are strong, rope-like structures which is formed by dense connective tissue where tendons connect skeletal muscles to bones, while ligaments connect bones at joints.
Ligaments have more elastic fibers which are more extensible than tendons. This connective tissue is found in the lower layers of the skin known as Dermis, where it is structured in sheets.
Thus, Tendons and Ligaments are the extremely dense form of connective tissue.
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What is the value of a transitional fossil?
Transitional forms show the evolutionary steps between species.
Transitional forms are analogous fossils.
Transitional forms discredit the theory of evolution.
Transitional forms are proof of punctuated equilibrium in evolution.
Answers
The value of a transitional fossil is that its forms are analogous fossils.
What is Transitional fossil?These are fossilized remains of organisms which exhibits traits common to
both an ancestral group and its derived descendant group.
Analogous fossils possess similar structures and functions but evolved
differently thereby making the transitional form the same as it being
analogous.
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Answer:
A
Explanation:
On Edge2022 :)
Water sticks to the sides of a glass tube, but mercury forms a rounded, bubble-like surface at the top of the liquid. Which is probably greater in mercury-cohesion or adhesion. Explain your answer.
Please help! The quarter ends tomorrow and I need to get this done.
Answers
Answer:
Water wets glass and spreads out on it because the adhesive forces between the liquid and the glass are stronger than the cohesive forces within the water.
Explanation:
i just answerd it
а
What behavior does a fly
body
to escape
use
from
predators
Answers
Answer:
Quick getaway is the answer but I'm not too sure
phenol, strong acids and bases are examples of hazardous chemicals that are
Answers
Answer:
corrosive chemicals thank you
when you open a solid room air fresher the solid slowly loses mass and volume. how do you think this happens
Answers
Hope that helps :)
Science is the study of living beings only.
True
False
Answers
Answer:
false
Explanation:
because its not
What is the role of diaphragm?
Answers
Answer:
The role of the diaphragm is breathing
hope this helped you if it dose please mark brainiest
Scientists set up ___
and then record
to be tested during an experiment,
And then record ___ as they conduct the experiment
Answers
Answer:
1. a hypothesis
2. the results
Explanation:
The first organisms to move into an area after a primary disturbance are
Answers
Answer:
Small Organisms that can reproduce faster than others
Pumpkins grow by what cell division process?
Answers
Explanation:
Growing pumpkin for last 15years extends tomato cell division process
Answer:
mitosis
Explanation:
mitosis, is the type of cell division in which parent cells get divided into two identical daughter cells.
Why did Paul Newman still feel concerned after the
study of the ozone?
Answers
Answer:
Inna Allah Yusmiyu Mayyashao”
After this Dua recites verse 22 from Surah Fatir which is mentioned below 111 times.
Wa maa yastawil ahyaaa’u wa lal amwaat; innal laaha yusmi’u mai yashaaa’u wa maaa anta bimusi’im man fil quboor
please match these for me the last 2 are
-are uses a focused beam of electrons to see details inside small objects
-uses a probe to scan the surface of an object and create an image
Answers
Why are amino acids called amino acids?
Answers
Answer:
The name “amino acid” is derived from the amino group and carboxyl-acid-group in their basic structure. There are 21 amino acids present in proteins, each with a specific R group or side chainAll organisms have different essential amino acids based on their physiology.
Answer:
Because they are made of an amino group (NH3) and carboxylic acid group ( COOH)
= amino acid
Explanation:
can anyone heelp me
pls pls
Answers
Answer: lotion- semi-solid
capsule- solid
suspension- liquid
Explanation:
The structure into which the filtrate first passes
A. Renal artery
B. Proximal tubule
C. Glomerulus
D. Bowman’s capsule
Answers
HELP WILL GIVE BRANLIEST
Answers
Answer:
I think it's the last one, photosynthesis takes place in all plant cells, and respiration takes place only in leaf cells, but im not 100% sure
Explanation:
Answer: last one
Explanation:
Question 1 of 10
Psychology is the scientific study of:
Answers
Answer:
The mind and behavior!
Explanation:
Hope this helps!:)
Pls I need help I need answer
Answers
Answer:
cells
Explanation:
tissues is a group of cell with same function.