1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
jenyasd209 [6]
3 years ago
9

The drug colchicine inhibits the formation of spindle fibers during mitosis. If you treat dividing plant cells with colchicine,

what would you expect the result to be? A. The chromosomes are halved during cell division and the result is a cell that has half the number of chromosomes than it would normally have. B. The chromosomes do not pull apart in an orderly fashion during cell division and the result is two cells with unequal numbers of chromosomes. C. The chromosomes are separated during prophase and each of the four daughter cells receives a haploid number of chromosomes. D. The chromosomes do not pull apart during cell division and the result is a cell that has double the number of chromosomes than it would normally have.
Biology
1 answer:
vekshin13 years ago
8 0

Answer:

D

Explanation:

During metaphase of cell division, the chromosomes line up in the metaphase plate and the spindle fibers from the poles extend and attach to the centromeres of the chromosomes. The spindle then contracts and pull different chromosomes to the opposite poles of the cell before the parent cell divides.   If spindle fibers do not form, then the chromosomes will not separate during anaphase.

Therefore, the final cell after mitosis will be a cell with double the number of chromosomes -because if you remember, during interphase, genetic material is replicated so each daughter cell can have its copy-. Due to quality control in the process of cell divisison, this cell will mostly undergo apoptosis, otherwise, it could develop into cancer.

You might be interested in
Why does the actions of the thymus demonstrate a close functional connection between the lymphatic system and the endocrine syst
OleMash [197]

Answer:

The Thymus is a unique gland which protects the body against autoimmunity when the immune system act against itself.Hence the Thymus plays a significant role the dual systems i.e.,the lymphatic system (body’s defensive mechanism) and the endocrine system

Explanation:

The Thymus is special gland located anteriorly to the chest directly behind the sternum and in between the lungs. Active until puberty and gradually shrinks to become fat after puberty.

Function: Prior to birth and during childhood thymus engage in producing and maturation of T-lymphocytes or T-cells a particular type of white blood cells which defence the body against infectious disease germs.Though the organ does not function throughout the life span but it plays a significant role protecting the body against autoimmunity refers to an immune system works against itself .Therefore the thymus plays a key role in lymphatic system and an endocrine system.

Secretion:Thymus secretes Thymosin a hormone it instigates the development of T-Cells ( disease resisting cells) Thymosin stimulates the development of T-Cells until a human attains its puberty. At the age of 75 thymus becomes a fatty tissue.

8 0
3 years ago
Disadvantages of normal floras​
inn [45]
It has a lot of advantages as well as disadvantages; but they prevent or suppress the entry of pathogens; colonies produced by some organisms of normal flora have a harmful effect on the pathogens; endotoxins liberated by normal flora may help the defense mechanism of the body. (Make me the brainless please)
3 0
3 years ago
Glucose is broken down into pyruvic acid in a process called
mina [271]
Glucose is broken down into pyruvic acid during the process known as <span>glycolysis. </span>
6 0
3 years ago
The predator-prey relationship is an example of commensalism.<br> True<br> False
katrin [286]

Answer is False

Predator- prey is example of predation

4 0
3 years ago
What are the funtions of the urethra?
VLD [36.1K]

Answer:

The urethra is the tube that carries urine from the bladder to outside of the body.

Explanation:

google said so...

3 0
3 years ago
Other questions:
  • There are certain individuals who are unable to distinguish colors. these people suffer from __________________.
    9·1 answer
  • A student conducts an experiment to determine how the amount of water given to a plant affects its growth.
    9·2 answers
  • Marine debris mostly originates from oceangoing ships. true or false
    15·2 answers
  • I have a simple question about external variables. If I'm doing an egg drop experiment, and my teacher "chucks" it off of the ro
    14·1 answer
  • Refer to this portion of a dichotomous key to answer the question.
    13·2 answers
  • A 57-year-old man is evaluated in the clinic for a routine physical exam. He is followed for hypertension and hyperlipidemia. He
    10·1 answer
  • Estuaries serve which important role for marine ecosystems?
    13·1 answer
  • Explain how radioactive decay works?
    13·2 answers
  • The particles in a solid
    14·1 answer
  • What happens during G₁ phase?​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!