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AVprozaik [17]
3 years ago
13

Which of these refers specifically to a stiffening of the arteries, which in turn restricts blood flow?

Biology
2 answers:
ivann1987 [24]3 years ago
6 0

Answer: D) arteriosclerosis

Explanation:

The answer is correct because I did the USA test prep.

Alex777 [14]3 years ago
5 0

Answer:

D) arteriosclerosis

Explanation:

  • Arteriosclerosis refers to the thickening and hardening of walls of the arteries.  In simple words it is the stiffening of the artery walls.
  • Arteriosclerosis is caused by high blood pressure, high cholesterol levels or smoking, which damages the arteries causing the formation of plaques.
  • Formation of plaques makes arteries to thicken and stiffen thus restricting the flow of bloods to organs and tissues in the body.
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Which is more precise - a measurement of 2.0 or a measurement of 2.05?
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) Consider a pea plant- it has a gene controlling seed color- yellow Vs green; another gene controlling seed texture-smooth Vs w
lana [24]

Answer:

Yellow smooth  - 9

Yellow wrinkle - 3

Green smooth- 3

Green Wrinkle - 1

Explanation:

Let the green color of the seed be depicted by "G" and the yellow color of the seed be depicted by "g"

Let the smooth the seed be depicted by "R" and wrinkled seed be depicted by "r"

F1 cross -  

true breeding smooth green plant ( RRGG) and true breeding wrinkled yellow (rrgg)

F1 gamete will be RG, RG, rg, rg

F1 offspring will be RrGg , Thus all F1 offspring will be heterozygous smooth and yellow.  

Thus,  R is dominant over r and g is dominant over G

F2 Generation –  

RrGg x RrGg

Gametes will be RG, Rg, rG, rg

RG         Rg          rG           rg

RG RRGG RRGg RrGG RrGg

Rg RRGg RRgg RrGg Rrgg

rG RrGG RrGg rrGG rrGg

rg RrGg Rrgg rrGg rrgg

R is dominant over r and g is dominant over G

Genotypes are –  

RRGG - 1  (Smooth Green)

RRGg-2  (Smooth yellow)

RrGG-2  (Smooth Green)

RrGg-4  (Smooth yellow)

RRgg- 1  (smooth yellow)

Rrgg – 2  (Smooth yellow)

rrGG – 1  (wrinkled Green)

rrGg – 2  (Wrinkled yellow)

rrgg – 1  (wrinkled yellow)

Yellow smooth  - 9

Yellow wrinkle - 3

Green smooth- 3

Green Wrinkle - 1

4 0
3 years ago
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