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Svetach [21]
3 years ago
7

How are the three chromosomal aberrations differend from each other?

Biology
1 answer:
Lorico [155]3 years ago
6 0
The three chromosomal aberration: 

1.) Inversion - breakage of chromosome in two places , the other piece of DNA is re- inserted into the chromosome.
2.) Translocation - the one piece breaks off and attaches to another chromosome. 
3.) Deletion - the loss of segment of chromosome.

-ace
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Ecosystems provide many services.which of these is a service that moderates the environment in a way that benefits people
Komok [63]
An example of an ecosystem that benefits people could be the ocean.
The ocean regulates the temperature of the earth, allowing a more comfortable place for people to live.
Hope this helps!
8 0
3 years ago
Stion
vovangra [49]

Answer:

O The neuron has more potassium ions inside than outside.

Explanation:

The membrane resting potential is defined as the difference in electrical charge between the interior of neurons and their outer environment. In neurons, both sodium (Na+) and potassium (K+) pumps contribute to generating the resting potential. Neurons have a higher concentration of K+ inside than outside and a higher concentration of Na+ outside than inside. When a neuron is at its rest state, where the inside is negative with respect to the outside, its membrane is more permeable to K+ than Na+, and therefore the resting membrane potential is closer to the equilibrium potential of K+.

8 0
3 years ago
4. In humans and all creatures constructed of eukaryotic cells, the DNA always resides in the .
Lady_Fox [76]

Answer:

Nucleus (as nuclear DNA),mitochondrial(mitochondrial DNA) and chloroplasts.

DNA is packed tightly around protein called Histones, in Eukaryotes cells;so that many molecules can easily be held together as chromosomes.

Chromosomes are thread-like structure in nucleus of cells.The histones provide support to the DNA molecule

The part DNA molecule coded for by a polypeptide is GENE, therefore  in the nucleus of cells, DNA contains GENE,and the gene and DNA are packed in chromosomes,DNA appears as circular DNA mitochondria

Explanation:

8 0
3 years ago
How does the founder affect contribute to genetic variation
Sever21 [200]
Bottlenecks and founder effects. Genetic drift can cause big losses of genetic variation for small populations. Population bottlenecks occur when a populations size is reduced for at least one generation... reduced genetic variation from the original population
6 0
3 years ago
Asthma narrows airways to the lungs and in the lungs by contraction of muscles around the air passages, swelling of the airway l
zlopas [31]
The correction is B.
The respiratory system is the one that is responsible for transportation of oxygen from the outside to the lungs and the reverse transportation of carbon dioxide from the body to the atmosphere. The muscular system is responsible for the contraction of muscles around the air passages during respiration. These two systems are negatively affected in asthma patients during respiration.
7 0
3 years ago
Read 2 more answers
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