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
ankoles [38]
2 years ago
12

Differentiate between positive and negative mass selection.

Biology
1 answer:
Eduardwww [97]2 years ago
7 0

Answer:

Positive selection involves targeting the desired cell population with an antibody specific to a cell surface marker (CD4, CD8, etc.). ... Negative selection is when several cell types are removed, leaving the cell type of interest untouched.

You might be interested in
Awnser my question NOW!!!!!!!!!!
Sav [38]

Answer:

DNA can be described as the molecules which carries the genetic code for every individual. The DNA is made up of nucleotide bases which join the two strands of DNA. The sugar and phosphate form the backbone of the DNA.

Genes are the hereditary molecules which are made up of DNA. The alleles of a gene represent which traits will be carried by an organism.

Chromosomes are made up of genes. During reproduction, crossing over of DNA occurs and alleles of the genes assort independently due to which variations occur.

7 0
3 years ago
Why does cellular respiration need energy
Kryger [21]

Answer:

The cells of living things also get energy by "burning." They "burn" glucose in the process called cellular respiration. Inside every cell of all living things, energy is needed to carry out life processes. Energy is required to break down and build up molecules and to transport many molecules across plasma membranes.

Just did this lesson on Edg 2020

Happy Holidays!

Explanation:

7 0
2 years ago
which is one of the disadvantages of using fossil fuels as an energy resource? (a) burning fossil fuels produces radioactive was
lilavasa [31]
I believe the answer is     b  
3 0
3 years ago
The popsicle you are eating starts melting. Which of the following is correct regarding the situation?
Evgen [1.6K]
The popsicle gains thermal energy and the particles speed up.
5 0
2 years ago
Determine the process most immediately affected by the deletion of each sequence.
levacccp [35]

Answer:

o

Explanation:

8 0
3 years ago
Other questions:
  • What is the smallest "building block" of the elements that make up the universe?
    10·1 answer
  • What does it mean to describe a scientist as sketptical?
    5·1 answer
  • Most animal cell membranes have proteins that pump ______ ions out of the cell and potassium ions into the cell.
    11·1 answer
  • Where does translation take place? hints where does translation take place? endoplasmic reticulum golgi apparatus ribosome nucle
    10·1 answer
  • Carbon dioxide can be found in what form in the atmosphere
    13·2 answers
  • What type of noise does a fox make? or what noise do deer make?
    8·1 answer
  • Which of the following describes the muscles?
    11·1 answer
  • In what vessel is blood pressure the highest? the lowest? in what vessel is blood flow rate the fastest? the slowest?
    5·1 answer
  • The atmospheric component that contributes to the majority of greenhouse warming on earth is:
    14·1 answer
  • Use the Lotka-Volterra competition model to determine whether the two species of Paramecium will coexist or drive each other to
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!