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
KengaRu [80]
3 years ago
8

Which mechanism of genetic variation results from the exchange of gene segments between non-sister chromatids?

Biology
2 answers:
otez555 [7]3 years ago
6 0
The correct answer should be "A"
elixir [45]3 years ago
3 0
The crossing over mechanism of genetic variation results from the exchange of gene segments between non sister chromatids. The correct answer is A. 
You might be interested in
you decided to make bread you mix together the yeast mixture and set it on the table overnight but when you wake in the morning
katovenus [111]
This question would be better placed under the Chemestry section
4 0
3 years ago
List the layers contained in the atmosphere and describe what is in each layer.
lisabon 2012 [21]

Answer:

Exosphere -The exosphere layer is mainly composed of extremely low densities of hydrogen, helium, and several heavier molecules including nitrogen, oxygen, and carbon dioxide closer to the exobase. The atoms and molecules are so far apart that they can travel hundreds of kilometers without colliding with one another.

Thermosphere - The aurora (Northern Lights and Southern Lights) mostly occur in the thermosphere. The thermosphere is a layer of Earth's atmosphere. The thermosphere is directly above the mesosphere and below the exosphere. ... Temperatures in the upper thermosphere can range from about 500° C (932° F) to 2,000° C (3,632° F) or higher.

Mesosphere- Most meteors burn up in the mesosphere. A type of lightning called sprites sometimes appears in the mesosphere above thunderstorms. Strange, high-altitude clouds called noctilucent clouds sometimes form in this layer near the North and South Poles.

Stratosphere-The stratosphere is the second major atmospheric layer above the troposphere, extending in altitude from about 8 to 30 miles high. No weather occurs in the stratosphere. The statosphere contains over 15% of the total mass of the atmosphere, and is where the ozone layer is located.

Troposphere-The troposphere is the lowest layer of Earth's atmosphere, and is also where nearly all weather conditions take place. It contains 75% of the atmosphere's mass and 99% of the total mass of water vapour and aerosols.

i hope this helps, good luck :)

7 0
3 years ago
Carbon is found in only living organisms true or false
Marrrta [24]
This is false!
Carbon is found in many substances!

For example, we breathe out carbon (Carbon dioxide) and as a result, there is an amoung of carbon in the air.

Carbon is also found in many rock types, such as in coal.
4 0
3 years ago
Read 2 more answers
The human population of the United States passed through the demographic transition between 1790 and 1910. How has the populatio
Afina-wow [57]

Since 1910, the urban population has grown by nearly 500 percent while the rural population has grown by 19 percent. ... The Census Bureau estimates that during the same 30-year period, the population of the 49 states grew by more than 82 million people, or 36 percent

3 0
3 years ago
Secondary sex characteristics are traits that
Trava [24]

Answer:

Occur later in development

8 0
3 years ago
Other questions:
  • Which cycle depends on evaporation
    12·2 answers
  • The number of kilocalories from carbohydrates in a baked potato that contains 40 g carbohydrate is _____ kcal.
    10·1 answer
  • Which question is most likely to be found in a dichotomous key for fish identification?
    13·1 answer
  • Circulatory systems compensate for _____.
    7·1 answer
  • The blood group B is almost absent in Native Americans, whose ancestors arrived in very small numbers about 10,000 years ago. Wh
    8·1 answer
  • Scientists conduct experiments to collect evidence. Which of the following is the best definition of the word experiment as used
    15·1 answer
  • Use the information below to answer: What may have happened to cause the selection event?
    14·1 answer
  • i need help on this question im getting behind every second this is confusing i NEED ANSWERS please and thank you​
    6·2 answers
  • Fruit flies (Drosophila melanogaster) with a wild-type phenotype have gray bodies and red eyes. Certain mutations can cause chan
    10·1 answer
  • PLEASE HELP!!! 63 points.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!