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coldgirl [10]
1 year ago
15

The chromosomes are arranged in their respective _________________________________ pairs. In humans, this displays 22 pairs of _

________________________________ and 1 pair of _________ _____________________________________.
Biology
1 answer:
Tasya [4]1 year ago
7 0

Answer:

The chromosomes are arranged in their respective homologous  pairs. In humans, this displays 22 pairs of autosomes and 1 pair of sex chromosome.

Explanation:

Chromosomes that are similar in their size and shape and also display similar genetic traits and carry the same genetic information are paired together. These are known as homologous chromosomes. These chromosomes carry different variations of similar genes in them. In humans there are 46 chromosomes in total. These chromosomes are paired and form 23 homologous pairs. Among these 23 homologous pairs, 22 pairs are autosomes and one pair are the sex chromosomes which are either (XX or XY). The sex chromosomes determine the sex of an individual. XX chromosomes represent a female and XY chromosomes represent a male.

Learn more about autosomes here:

brainly.com/question/19426394

#SPJ4

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Explanation:

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1 mole of CO2 = 22.4 L

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No. of moles in .224 L = Given volume/Standard volume

= .224/22.4 = 0.01 mole

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1. Explain the Linnaean system of classification. What has caused changes to this system since the early 1700s?
Julli [10]
I hope this information helps you :)! 

Linnaeus divided nature into three kingdoms: animals, vegetable (or plant),  <span>and minerals. The animal and plant kingdoms were further divided into  </span><span>smaller, more inclusive categories based on physical characteristics. </span><span> As time passed, and knowledge increased, other scientists added to  </span><span>Linnaeus’ original system.


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3 0
3 years ago
What specific part of the cell/structure allows the mucus secretions to be thick and viscous rather than fluid (i.e., is it a me
Ksenya-84 [330]

Answer:

The CFTR behaves like a channel for chlorine. Its dysfunction affects both the transport of this ion and other ions and the transport of water, which causes a thickening of secretions, an alteration of mucociliary transport and local defenses, facilitating bacterial colonization and promoting the release of pro-inflammatory mediators in the airway

Explanation:

CFTR is a protein expressed in the epithelial cells of the respiratory system, pancreas, bile ducts, sweat glands and genitourinary system. It is made up of a single chain made up of 1,480 amino acids. It contains 12 hydrophobic regions embedded in the lipid membrane and acts as a channel for chlorine.The highest levels of expression of the CFTR protein are found in serous cells of the submucosal glands of the proximal airway. In them, Cl- is released to the outside. In addition, there are channels for Na +, through which this ion is also secreted in the same direction. These movements cause the displacement of water and also of mucins, originating in the submucosal glands, allowing their presence on the surface of the airway. For all this to occur normally, a basolateral Na + - K + - ATPase cotransporter must function, another basolateral cotransporter formed by Na +, K + and 2 Cl-, which allows the latter to enter the cell, and an apical CFTR channel through which it exits the Cl- of the cell towards the acinar lumen. Na + leaves the cell following Cl- by a paracellular pathway accompanied by water. When CFTR malfunctions, Cl- does not exit through this channel and this implies a decrease in Na + and water in the canalicular lumen, with the consequent thickening of secretions.

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