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3 years ago

Rough endoplasmic reticulum definition and function

Biology

1 answer:

Alik [6]3 years ago

6 0

Answer:

Rough endoplasmic reticulum is an organelle found in eukaryotic cells. Its main function is to produce proteins. It is made up of cisternae, tubules and vesicles. The cisternae are made up of flattened membrane disks, which are involved in the modification of proteins. Rough endoplasmic reticulum has a number of functions. One of the main functions of the rough endoplasmic reticulum is to produce and process specific proteins. These are the exported through the secretory pathway. After they are exported via membrane vesicles, they can be sent to the Golgi Apparatus to be further processed or to organelles. They can even be exported to outside the cell and into another part of the body. Ribosomes also create proteins which are embedded into the rough endoplasmic reticulum for further processing (integral membrane proteins). Water soluble proteins are created too, which are exported through the membrane into the lumen.

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This is the study of the natural processes that occur in the environment and how humans can affect them?

masya89 [10]

Answer: Ecology is the study of organisms and how they interact with the environment around them. An ecologist studies the relationship between living things and their habitats.

Explanation:

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Which of the following reasons explains why it is important for new scientific findings to be published?

kumpel [21]

Answer:

D - Other scientists can validate or disprove the findings

Explanation:

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3 years ago

Mr. jones has blood type b and mrs. jones has blood type ab. what is the probability that they will have a child with blood type

Finger [1]

Cross: Ib Ib × Ia Ib

Offspring: IaIb , IbIb, IaIb, IbIb

ab = 50%
b = 50%
a = 0%

In short, Your Answer would be Option A) 0%

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What is the purpose of the part of the male reproductive system that is

Dahasolnce [82]

Answer:

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3 years ago

1. Flower position, stem length, and seed shape are three characters that Mendel studied. Each is controlled by an independently

maria [59]

Answer:

a. 1/64 AATTDD

b. 1/64 aattdd

c. 8/64=1/8 AaTtDd

d. 2/64 = 1/32 AATTDd or aattDd or AAttDd or aaTTDd

Explanation:

Available data:

Flower position: Axial (A) is dominant to Terminal (a)

Stem length: Tall (T) is dominant to dwarf (t)

Seed shape: Round (R) is dominant to wrinkled (r)

Cross:

Parental) AaTtDd x AaTtDd

Knowing that these four genes assort independently, then we can infer that the F1 will have the next genotypic proportions for each gene:

AA= 1/4

Aa =2/4

aa = 1/4

TT = 1/4

Tt = 2/4

tt = 1/4

DD = 1/4

Dd = 2/4

dd = 1/4

This is the same as developing a Punnett square for each gene separately.

Knowing this, to get each of the mentioned genotypes for each trait, we must multiply their respective genotypic proportions, like this:

a. homozygous for the three dominant traits, AATTDD

AA1/4 x TT 1/4 x DD 1/4 = AATTDD 1/64

b. homozygous for the three recessive traits, aattdd

aa 1/4 x tt 1/4 x dd 1/4 = aattdd 1/64

c. heterozygous for all three characters, AaTtDd

Aa 2/4 x Tt 2/4 x Dd 2/4 = AaTtDd 8/16=1/8

d. homozygous for axial and tall, heterozygous for seed shape. There are four possibilities, all of them with the same result:

AATTDd --> 1/4 x 1/4 x 2/4 = 2/64=1/32

aattDd ---> 1/4 x 1/4 x 2/4 = 2/64=1/32

AAttDd ---> 1/4 x 1/4 x 2/4 = 2/64=1/32

aaTTDd ---> 1/4 x 1/4 x 2/4 = 2/64=1/32

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3 years ago

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