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Harrizon [31]
2 years ago
8

when looking for Endoplasmic reticulum of a cell, the microscope zooms in enough to see ribosomes that are embedded in the outsi

de of the Endoplasmic Reticulum. Which type of Endoplasmic Reticulum is this
Biology
1 answer:
nalin [4]2 years ago
8 0

Answer:

Rough ER

Explanation:

This type of Endoplasmic Reticulum has ribosomes around its outer membranes hence is a major organelle in the processing of cell proteins. When polypeptide chains are formed in the ribosomes, they enter the lumen of the RER where they are folded properly using chaperones and post-translational modification carried out on them.

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PKU (Phenylketonuria) is an autosomal recessive disease, in which the synthesis of amino acid Tyrosine from Phenylalanine is blo
prisoha [69]

To calculate the frequency of the heterozygote genotype (Pq) for this gene we must use the Hardy-Weinberg equation ( p2 + 2pq + q2 = 1 ). This equation relies on the Hardy-Weinberg principle, a model in population genetics that states that the frequency of the alleles in a population is never changing, only the combinations (the genotypes) are changing.

If there are only two alleles (variations) of this gene in a population, then their frequencies should add up to 1 (100%). From this, we can calculate the frequency of the q allele.

p +q=1

0,3 +q=1

q= 1-0,3

q= 0,7

Now hat we have the frequency of the q allele we can use the HW equation to calculate the frequency of the heterozygotes.

p^{2} + 2pq + q^{2} = 1

(0,3)^{2} + 2pq +(0.7)^{2} = 1

0,09 + 2pq +0.49= 1

2pq +0,58= 1

2pq= 1-0.58

2pq=0,42

The freqency of the heterozygotes in this population is 0.42

6 0
3 years ago
The correct way to calculate population size is by dividing the total population by the land area.
Lyrx [107]

The statement "The correct way to calculate population size is by dividing the total population by the land area." is true. The correct option is A.

<h3>What is the population?</h3>

The entire number of species in a given area makes up the population. Surveys of various places are conducted to determine the population. By dividing the total population by the fraction of each individual, the population size can be determined.

There are various techniques for population counting. Cohort analysis, aerial counts, etc., are some of these techniques.

Thus, the statement is true. The correct option is A.

To learn more about population size, refer to the link:

brainly.com/question/23433122

#SPJ1

8 0
1 year ago
Help with this I meed to get it done today please
Nesterboy [21]
#11.) Phacops. It lived in the late Devonian Period (~400 million years ago).

#12.) Carbon-14 is a good radioactive isotope for determing the age of artifacts from a burial site thought to be associated with the most recent early humans because it is present in all organic matter (which humans have, of course).

#13.) 3, Devonian.

#14.) From the Devonian Period through the Triassic Period.

#15.) Cenozoic.
4 0
3 years ago
Give an example of a scientific theory.
zepelin [54]

Answer:

Example of scientific theory is given below

Dalton's atomic theory, Einstein's theory of gravity, and the kinetic theory of matter.

Explanation:

PLEASE MARK ME BRAINLIEST IF MY ANSWER IS CORRECT PLEASE

4 0
1 year ago
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In the fossil record, there is no evidence of anything living on land before plants. Why are plants necessary before more compli
stiv31 [10]

Answer:

maybe option D is correct

6 0
2 years ago
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