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
Alex777 [14]
2 years ago
15

When crossing over take places chromsomes

Biology
1 answer:
laila [671]2 years ago
6 0

Answer: D

Explanation:

Crossing over refers to homologous chrosmomes exchanging DNA which creates variation of chromsoomes that are inheried by offspring.

You might be interested in
Gene flow and genetic drift both affect allele frequencies in a population. A high level of gene flow into a population genetic
DaniilM [7]

A high level of gene flow into a population increases genetic diversity in a population. A high level of gene flow out of a population decreases genetic diversity in a population. Genetic drift is the change in allele frequencies due to "sampling error" factors. Typically, genetic drift has the biggest impact on small populations.

Gene flow (or gene migration) is a mechanism of evolution (change the allele frequencies) which transfers genetic variation among populations due to migration. High level of gene flow decreases the genetic differentiation between the two populations.

Genetic drift is a mechanism of evolution that acts by chance (“sampling error”) often when a population is reduced in size by a natural disaster (bottleneck effect) or when a small group leaves the main population and forms a colony (founder effect).


8 0
3 years ago
Read 2 more answers
11) The Nebular Hypothesis was first developed in the 18th century and is still a widely accepted model as to how our solar syst
omeli [17]
Answer is B) Albert Einstein
4 0
2 years ago
Autopsy conducted on an individual who had died of pneumonia revealed bluish-green pus filling the lung. The causative agent of
Rus_ich [418]

Answer:

The agent causing the pneumonia, where bluish-green pus was found, is most likely Pseudomonas aeruginosa.

Explanation:

Pseudomona aeuriginosa is a gram-negative bacteria that is one of the main causes of hospital-acquired infections, including pneumonias in mechanically ventilated patients.

One of the characteristics of P. aeuriginosa is the formation of a bluish-green pus, since it has the capacity to form cyanide-based blue pigment upon contact with the organic tissues it infects. This is the reason why previously P. aeruginosa was called a pyocyanic bacillus.

<em>     The other options are not correct because the only bacterium that produces blue-green pus is P. aeruginosa.</em>

7 0
2 years ago
Nora, who is pregnant, wakes at 2am craving pickles. the craving indicates
Bogdan [553]
When women experience cravings for different foods, it means that they experiencing a hormone related change which severely effects their sense of taste and other senses that can cause these kinds of cravings.
let me know if you have any other questions
:)
8 0
3 years ago
_____ neurons convey information about the environment from the sense organs to the brain, and _____ neurons communicate informa
Contact [7]

Answer: C). Sensory neurons, D).motor neurons

Explanation: Sensory neurons are nerve cells that carry signals from the external parts of the body such as the skin, eyes, ear, nose (the sense organs) to the brain.

Motor neurons are nerve cells that carry information or messages away from the central nervous system ( brain and spinal cord) to the rest of the body such as the skin, muscles and glands.

3 0
3 years ago
Other questions:
  • ______ is defined as a group of organisms that look alike and can interbreed
    6·1 answer
  • What relationship exists between nutrients and biomolecules?
    5·2 answers
  • How would you expect prey to respond to a predator they have never encountered before (a novel predator)? explain your reasoning
    13·2 answers
  • Gas exchange in an echinoderm takes place through
    11·1 answer
  • Zara is an excellent violin player. Which part of her brain is responsible for the motor skills involved in playing a violin?
    6·2 answers
  • Warm-Up
    15·1 answer
  • Make a histogram with no variation
    14·1 answer
  • What organization level is the small intestine
    9·2 answers
  • The number of organisms that an ecosystem can support depends on
    7·1 answer
  • Essay about why people should not join a gang​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!