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
scZoUnD [109]
3 years ago
8

In which process do the chromosomes line up in homologous pairs in the center of the cell?

Biology
2 answers:
dalvyx [7]3 years ago
4 0

A. Meiosis

This is the correct answer

amid [387]3 years ago
3 0

Answer:

A. Meiosis

Explanation:

In meiosis the chromosomes line up in homologous pairs, the center of the cell.

You might be interested in
Describe the process of chromatographic separation. You need to include both the equilibrium model to predict retention times an
Kay [80]

Answer:Chromatography is actually a way of separating out a mixture of chemicals, which are in liquid or gas form, by letting them flow slowly past another substance, which is either a solid or a liquid. It consist of a stationary phase and a mobile phase.

Explanation: All chromatographic systems rely on the fact that a substance placed in contact with two unmixable phases, one movable phase and one stationary phase, will equilibrate between them. A selectivity (or separation) factor (α) is used to 'chemically' distinguish between sample components. It is usually measured as a ratio of the retention (capacity) factors (k) of the two peaks in question and can be visualized as the distance between the apices of the two peaks. reproducible fraction will partition into each phase, depending on the relative affinity of the substance for each phase. A substance which has affinity for the moving or mobile phase will be moved rapidly through the system. A material which has a stronger affinity for the stationary phase, on the other hand, will spend more time immobilized in that phase, and will take a longer time to pass through the system. Therefore, it will be separated from the first substance. By definition, chromatography is a separation technique in which a sample is equilibrated between a mobile and a stationary phase. A theoritical plate or tray is used to produces the best possible difference between the liquid and vapour phases in equilibrium with it

Chromatographic separations are best done with a small amount of analyte (substance to be separated during analysis), which keeps either phase from becoming saturated with analyte, so that the concentrations in the two phases are directly proportional. Overloading the column with sample causes one of the phases to become saturated, leading to a loss of column efficiency, and poorly shaped peak profiles.

The retention volume in chromatographic separation (Vr) is the volume of the mobile phase required to carry the solute through the column to elution, is related to the column flow (Fc) and the retention time (tr). Likewise, the volume of the mobile phase(Vm), is related to the flow and the time the void volume takes to pass through the column.

Band broadening using the kinetic model is a phenomenon that reduces the efficiency of the separation being carried out, leading to poor resolution and chromatographic performance. This is problematical in terms of both the quality of the separation obtained and the accuracy with which sample components can be quantified.The wider band results in a dilution effect that produces a decrease in peak height accompanied by a loss in sensitivity and resolution. The eddy dispersion, accounts for the source of band broadening related to any flow unevenness in the column.

4 0
3 years ago
Both animals and plants must maintain homeostasis in order to stay alive. Plants excrete
sp2606 [1]

Answer:B

Explanation:

8 0
3 years ago
Can someone please answer my last question?????
Stolb23 [73]
Sure what is it , where is it
3 0
3 years ago
What changes could you make to your behavior ? What changes could the school make to help you?
Zigmanuir [339]

Answer:

you could be strict or just have consequenes like taking stuff away

Explanation:

8 0
3 years ago
Read 2 more answers
Which compound is a metabolic intermediate of the light-independent reactions in photosynthesis?
a_sh-v [17]
<span>Assuming that this is referring to the same list of options that was posted before with this question, the correct answer is the one that is second from last on the list. </span>
6 0
3 years ago
Read 2 more answers
Other questions:
  • Why does a year consist of 365 days and a day of 24 hours?
    15·1 answer
  • Explain the importance of feedback inhinbition to the cell
    8·1 answer
  • Biologists estimate how long ago species separated from a common ancestor using a technique called
    7·2 answers
  • PLEASE HELP ASAP!!
    10·2 answers
  • What term is used to describe a retrograde flow of urine from the urinary bladder into the ureters that is the cause of recurren
    9·2 answers
  • The nurse is taking the health history of a client who has been admitted for repair of a cystocele and rectocele. which signs or
    13·1 answer
  • Chimpanzees. Why does it make the comparison between humans and chimps? What is the author of the Click and Learn trying to demo
    8·1 answer
  • Deer are eating Mr. Thompson's rose bushes. He puts a new deer repellent point on half of his rose bushes and then waters them.
    11·1 answer
  • A cross between two individuals that are heterozygous for eye and skin color would be an example of a _____ cross.
    8·1 answer
  • 2. Why did Dahl most likely give readers so few
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!