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k0ka [10]
3 years ago
7

A researcher who studies neurodegenerative diseases has found that dying neurons contains a high concentration of miss-folded pr

oteins in their cytoplasm. further experiments demonstrated that the lysosomes are working properly in these neurons. according to this information, which cellular structure is responsible for this disease?
Biology
1 answer:
tensa zangetsu [6.8K]3 years ago
6 0
The cellular structure responsible for this disease is THE ENDOPLASMIC RETICULUM. 
In eurkaryotic cells, endoplasmic reticulum is very essential for the folding and trafficking of proteins. Increased protein synthesis and environmental insults usually leads to the misfolding of proteins by endoplasmic reticulum. The accumulation of misfolded proteins inside the cell is called endoplasmic reticulum stress.
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Which element has one valence electron and six energy levels?
Vadim26 [7]

There is no element with one valence electron and six energy levels. Only two valence electrons and six energy levels.

Answer:

Calcium

Explanation:

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In a plant, leaf color and leaf shape are controlled by two linked genes Leaves of the wild-type plant are red. A recessive muta
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Solution :

Red is dominant over the white leaves and pointed is dominant over smooth.

Red = R ,    white = r

Pointed = P ,   smooth = p

Red, pointed x white,smooth ------ Parents

RRPP                 rrpp

RP                      rp  ----------------- Gametes

         RrPp    -------- $F_1$

  (red, pointed)

When this $F_1$ is test crossed,

RrPp  x  rrpp     ----  $F_1$ test cross

Gametes   → rp

RP ---------- RrPp - red, pointed - 36 parental type

Rp ---------- Rprp - red, smooth - 14 re- combination

rP ----------- rrPp - white pointed - 10 re- combination

rp ----------- rrpp - white, smooth - 40 - parental type

                                    Total =   100

As this ratio is deviating from 1:1:1:1, it indicated the two genes are linked.

Linkage strength = percentage of crossing over = map distance between the genes.

Percentage crossing = recombination frequency = percentage of recombination.

Recombination frequency $=\frac{\text{total no. of recombination}}{\text{total no. of progeny}}\times 100$

                                         $=\frac{14+10}{100} \times 100$

                                         = 24 %

                                        = 24 map units

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Angelina_Jolie [31]

Answer:

Explanation:

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