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Makovka662 [10]
3 years ago
6

Kiara pours measures the mass and volume of four mystery liquids and pours them into a beaker the liquids separate into differen

t layers according to Kiara's data above, which liquid would make up the bottom layer of the beaker?

Biology
1 answer:
Keith_Richards [23]3 years ago
4 0

Answer:

red will be the bottom layer

Explanation:

in order to find its density you have to do mass/volume.

Blue: 12/3 = 3  

Clear: 10/5= 2

Red: 15/3= 5

Yellow: 18/9 = 2

The one with the greates valua aka greatest density will be at the bottom layer/

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A mutation creates a dominant negative allele of a particular gene. The normal allele of the gene encodes a protein that forms a
Wewaii [24]

Answer:

87.5% of the trimers in the cell will be inactive.

Explanation:

A monomer is a single subunit. Look at an easy comparison. If a monomer is a ball. For the protein to be functional, it needs to be a trimer .A trimer = 3 monomers joined / bound together with bonds. Therefore, if a monomer is a ball, we need 3 balls, we attach it together and that is the primer . if one ball becomes missing, that protein won't work .

In chemistry, a trimer is regarded as three molecules or ions of the same substance (that is, same type) which are associated together .

Double negative : Each gene has 2 alleles. So, for a positive protein, both allele needs to be same, let's say + means on. So for a x protein , if it's x+/x+ it means the protein is homozygous and active. If for some mutation, it's x+/x- , it's a heterozygous protein. Double negative means when it is x-/x- and this means the protein has lost is function . It's not functional at all.

The heterozygous cell will form one or more subunits has the mutant structure when the gene is expressed. From the question if there is a mutation in dominant negative allele, it will cause the inactivation of one trimer resulting in 87.5% inactive trimers for a heterozygous individual.

There are 87.5 % percent of the trimers present in the cell which will be inactive for a heterozygous individual, If at least one of the subunits has the mutant structure.

The probability for each individual subunit to be a mutant is 1/2

Gene codes for a protein that forms trimer so the percentage of the trimers present in the heterozygous individual is third power of 1/2 =1/8

1/8=0.125 will be active.

1- 0.125 will be inactive.

=0.875 will be inactive.

0.875 × 100= 87.5%

Therefore 87.5% will be inactive.

8 0
3 years ago
What was sir isaac doing when an apple fell on his head which would eventually lead to the theory of gravity?
Leni [432]
He was sitting under an Apple tree
7 0
3 years ago
Explain how chromosome behavior during meiosis ensures transfer of parental traits to offspring
gizmo_the_mogwai [7]

Explanation:

During meiosis, sister chromosomes of a homologous pair separate into different cells during gamete formation . This mainly occurs in Metaphase I of meiosis where the homologous chromosomes line up the metaphase plate in their sets. Each chromosomes of a pair are then pulled to different poles of the cells separating them. Each of these chromosomes carries a set of alleles of a gene. Each cell/gamete, therefore, carried half the set of alleles of all genes compared to autosomal cells. There many combinations of these sets that can occur depending on the number of chromosomes the organism has.

These cells when combined with that of another parent during fertilization, form a zygote that grows and develops into a mature organism. The offspring will bear the characteristics of both parents because it inherits half a set of chromosomes from both parents.

Learn More:

For more on meiosis check out;

brainly.com/question/11701550

brainly.com/question/1271878

#LearnWithBrainly

6 0
3 years ago
Read 2 more answers
Which of the following are pollutants?
Wewaii [24]
2. & 3. are pollutants
8 0
3 years ago
Read 2 more answers
The primary mRNA transcript is edited much as you edit a research paper before submitting it. Which of the following editing pro
sergeinik [125]

Answer:

<h2>Cross out unnecessary phrases: Cut out introns.</h2>

Explanation:

The mRNA is a transcript of DNA . Primary mRNA transcript is edited before translation.

Mature mRNA is transcribed into protein, which is the final product of central dogma.

mRNA contains introns and exons , introns are removed by splicing.

the analogy of mRNA editing is Cross out unnecessary phrases: Cut out introns.

3 0
3 years ago
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