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
3241004551 [841]
3 years ago
10

Polymerase chain reaction was developed so that scientists could

Biology
1 answer:
zhuklara [117]3 years ago
3 0
C: replicate a gene without using bacteria
You might be interested in
Which is a homologous chromosome pair?<br> A.chromatid<br> B.zygote<br> C.gamete<br> D.tetrad
AVprozaik [17]

Hello!! I think your best answer would be D - Tetrad because consists of four chromatids. It is made up of two (pair) of homologous chromosomes that have already replicated into a pair of sister chromatids. I hope this answers your question. Have a great day!! :)

7 0
3 years ago
The dust bowl was the result of a series of dryers drought in the 1930s Where millions of pounds of topsoil were desiccated and
o-na [289]

Answer:

B) Absence of native grasses

Explanation:

The grasses, which acted as a windbreak and whose roots anchored the soil in place, were overgrazed and/or removed to allow for farming. Once a few years of severe drought affected the area, any wind storm was able to blow the topsoil away, rendering the farm land of the Great Plains virtually unusable in many areas. Ground cover is an essential part of sustainable agriculture.

6 0
3 years ago
Gastrulation, when the cells organize themselves into an embryo occurs 2 weeks after conception. What do the 3 layers of cells g
Travka [436]

Answer:

Gastrulation is the process where the developing embryo forms the process of the 3 germ layers. These germ layers are formed due to the movement of the single-layered blastula. Gastrulation starts during the third week of the human embryo.

The three germ layers give rise to different organs of the fetus. The 3 layers are ectoderm or outer layer, mesoderm or middle layer, and endoderm or inner layer.  

These 3 germ layers give rise to different organs of the human fetus. Ectoderm forms epidermis, skin, hair, olfactory organs, eye lense. glands like pituitary. Sensory nerves, skeleton, pigment cells are also formed from ectoderm.  

Ectoderm also forms a neural tube that further divides to form the brain, spinal cord.

Mesoderm form the vertebral column, skeletal muscle, excretory organs, reproductive organs. It also forms blood cells, blood vessels, body cavity or coelom.

The inner layer endoderm gives rise to the lining of the digestive tract, liver, pancreas, bladder, etc.

6 0
3 years ago
Please help will give brainless !!!!!:)
Anestetic [448]

Answer:

they start to run out of places to stay cool and then will eventually run out of food to eat then they will die. hope this helps

7 0
3 years ago
The property that holds molecules of the same substance together is called cohesion true or false
Nata [24]
Your answer is true 

Hope this helps <3
4 0
3 years ago
Other questions:
  • Explain the statement: “Cells are the basic units of structure and function in living things.”
    6·2 answers
  • PLEASE HELP ASAP!!!! CORRECT ANSWERS ONLY PLEASE!!!!
    15·2 answers
  • What is major thing happening to a cell during G1
    5·1 answer
  • 1. PCR is the abbreviation for _______________.
    10·1 answer
  • An immune response to a tissue graft will differ from an immune response to a bacterium because ________.
    15·1 answer
  • A statement of fact meant to explain an action or set of actions about nature .
    9·2 answers
  • Define procedure in your own words​
    6·1 answer
  • The soil atmosphere (gas) typically contains __________ oxygen and __________ carbon dioxide that the bulk atmosphere above the
    9·2 answers
  • Plants have the ability to make there own growth ______while heterotrophs must consume theirs.​
    12·2 answers
  • The flow of carbon from one carbon source to another is considered a carbon ___.
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!