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olasank [31]
3 years ago
5

What molecules make-up the sides of a dna molecule

Biology
1 answer:
iren2701 [21]3 years ago
3 0
Deoxy ribose sugar molecule
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Abnormally slow depolarization of the ventricles would most change the shape of the ________ in an ECG tracing. Group of answer
NeTakaya

Abnormally slow depolarization of the ventricles would most change the shape of the QRS complex in an ECG tracing.

  • The conduction system in the ventricles depolarizes, and this depolarization spreads along the walls of the ventricles to produce the QRS complex.
  • It represents electrical activity that occurs before the ventricles contract (ventricular systole). The QRS complex appears immediately after the onset of ventricular systole.
  • An aberrant depolarization of the ventricles results in the formation of an abnormal QRS complex.
  • The SA node, an ectopic pacemaker in the atria, AV junction, bundle branches, Purkinje network, or the ventricular myocardium are all possible pacemaker sites in these aberrant QRS complexes.
  • An aberrant QRS complex might have any shape, from normal to wide and odd to slurred and notched.

learn more about QRS complex here: brainly.com/question/10842164


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8 0
2 years ago
A. the tempatures on the islands
vlada-n [284]
B.) the available food on the islands
Since these different beaks were adaptions part of their evolution to be able to be more fit to survive with the food available on the island
8 0
2 years ago
What process is depicted in the basal layer of the glandular epithelium shown in b?
Snowcat [4.5K]

Answer;

-Cell division

Explanation;

-Glandular epithelium forms the covering of all major glands. It is also present in the intestinal lining.

-Cells are regenerated by division in the basal layer and migrate toward the apical surface to replace cells lost by fragmentation. Cell division is indicated by the mitotic phase cells located in the deepest (basal) layer of the glandular epithelium.

5 0
3 years ago
Marfan syndrome is a dominant trait. A cross between a homozygous dominant and a heterozygote would produce what phenotypic rati
umka2103 [35]

Answer:

The correct answer is- 4:0

Explanation:

Marfan syndrome is a genetic problem which affects the connective tissue in the body. The trait for this disease is autosomal dominant which means even one abnormal copy of this gene in the offspring or individual is sufficient to cause this syndrome.

Let S is the allele that is dominant for this syndrome and s is recessive. So if a cross between homozygous dominant(SS) and heterozygous individual (Ss) occurs than all the offspring would have this syndrome.  

                                   S      s

                              S  SS   Ss

                              S  SS   Ss

Therefore all 4 offspring would have at least one dominant allele which is sufficient to cause this syndrome. So the phenotype ratio would be 4:0.

                       

3 0
3 years ago
"Blank" filtration of the blood is called dialysis.
EastWind [94]
1.Artificial
c.blood and cells
c.presence or absence of a particular plasma
8 0
3 years ago
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