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
alisha [4.7K]
3 years ago
13

I need help ! i really don’t get it

Biology
1 answer:
Vaselesa [24]3 years ago
5 0

Answer:

The presence of an additional chromosome

Explanation:

Look at "pair" 21. See how there are THREE chromosomes instead of TWO? Normally, there would only be two chromosomes in each pair but this karyotype shows a trisomy (see def. below) of the 21st pair. This was caused by a nondisjunction mutation of the 21st pair. The is also the karyotype of a person with Down's Syndrome.

Definition of Trisomy:

A condition of the presence of three chromosomes in a pair instead of two. This normally causes developmental irregularity.

You might be interested in
PLEASE HELPP ILL GIVE BRAINLIST!!​
MrRissso [65]

C. the alge, zooplankton, insect, and bluegill populations would all be affected.

8 0
3 years ago
Read 2 more answers
The formation of soil is primarily the result of
otez555 [7]

Answer:

can you give me more information

8 0
3 years ago
Read 2 more answers
Which is the most accurate description of a leaf or your stomach?
blsea [12.9K]
The answer is B. an organ.


Brainliest answer would be greatly appreciated.
7 0
3 years ago
Read 2 more answers
Which of the following describes a function of the endoplasmic rectum within a cell ​
Pachacha [2.7K]

Explanation:

Endoplasmic reticulum is one of the cell organelles found in the cytoplasm of the cell. It is an important cell structure. It is made up of folded membranes.

  • In the endoplasmic reticulum protein is synthesized.
  • It helps in the transport of protein molecules to the golgi apparatus.
  • Protein is usually folded in the endoplasmic reticulum.

Learn more:

Endoplasmic reticulum brainly.com/question/2622106

#learnwithBrainly

6 0
3 years ago
Do you think that the blue crab can survive out of water?
grandymaker [24]

Answer:

Yes, but not for a long period of time

Explanation:

-> My answer comes from some quick research I did

        "Blue Crabs can last up to 24 hours out of the water as long as they are kept cool and moist." (crabbinghub.com)

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

4 0
2 years ago
Other questions:
  • Which characteristics do temperate continental slmiates have in common
    9·1 answer
  • What was the main function of the protocells fatty acid membrane
    5·1 answer
  • Subject: Science<br> Where are Quasars located?
    12·1 answer
  • What are the symptoms of being allergic to sugar in children?
    6·1 answer
  • A rock climber climbs up the rock wall how do the bones and muscles in his arms interact to allow him to climb up
    10·1 answer
  • How are the daughter cells produced by meiosis<br>different from those produced by mitosis?​
    7·2 answers
  • In what way is petroleum, a fossil fuel, distributed on Earth?
    12·2 answers
  • Name three elements used to date fossils with absolute dating
    14·1 answer
  • Cell Energy Cycle need help
    13·1 answer
  • Name some advantages and some disadvantages of overproduction of offspring
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!