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ycow [4]
3 years ago
14

In the right atrium, the auricle and anterior wall exhibit obvious muscular ridges called

Biology
1 answer:
san4es73 [151]3 years ago
6 0
<span>In the right atrium, the auricle and anterior wall exhibit obvious muscular ridges called MUSCULI PECTINATI.

Musculi pectinati or pectinate muscles are identified as specialized intracardiac muscle. The muscular ridges are like combs. These ridges help the right atrium dilate without much walls stress during adverse loading conditions.</span>
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Which type of cells are considered to be the building block of all multicellular organisms . A: prokaryotic
denis-greek [22]
Answer: D - Eukaryotic

Explanation: Can not be A, B or C

- Prokaryotic cells can not make up multicellular organisms
- Bacterial cells are prokaryotes and unicellular
- Not all multicellular organisms are plants and are therefore not all made of plant cells
4 0
3 years ago
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When a cell is not dividing, the dna is loosely spread throughout the nucleus in a threadlike form called __________?
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When a cell is not dividing, the DNA is loosely spread throughout the nucleus in a threadlike form called chromatin.
7 0
3 years ago
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(a) LL-<br> (e) Rr-<br> (b) YY<br> (c) Ss-<br> (d) RR<br> (9) ss-<br> (h) YY
geniusboy [140]

Complete question:

You will find the complete question and answer in the attached files

Answer:

a) LL-  <em> Long nose</em>

b) yy- <em>Blue body</em>

(c) Ss-  <em>Squarepants body</em>

(d) RR-  <em>Round eyes</em>

(e) Rr-  <em>Round eyes</em>

(f) ll- <em>Stubby nose</em>

(g) ss-  <em>Roundpants body</em>

(h) Yy- <em>Yellow body</em>

Explanation:

You will find the complete answer and explanation in the attached files due to technical problems.

8 0
3 years ago
Jason has five equally massed lead fishing weights, each weighing 250 grams. What is the total mass of the five lead fishing wei
algol [13]

Answer:

1250 g=1.25 Kg

Explanation:

We are given that Jason has five fishes of equally massed lead fish weights.

Weigh of each fish =250 grams

We have to find the value of total mass of the five lead fishing weights

Total number of fishes=5

In order to find the total mass we will use unitary method

Total mass is obtained by multiplying the total number of fishes with weight of one fish

Total mass=5\times 250

Total mass of five fishes=1250 g

1 kg =1000g

Then 1250 g=\frac{1250}{1000}=1.25 Kg

Hence, total mass of five lead fishing weights=1250 g=1.25 Kg

3 0
3 years ago
Read 2 more answers
In sickle-cell disease, as a result of a single amino acid change, the hemoglobin tetramers associate with each other and assemb
Phoenix [80]

Answer:

One of the common genetic disorders is sickle cell anemia, in which 2 recessive alleles must meet to allow for destruction and alteration in the morphology of red blood cells. This usually leads to loss of proper binding of oxygen to hemoglobin and curved, sickle-shaped erythrocytes. The mutation causing this disease occurs in the 6th codon of the HBB gene encoding the hemoglobin subunit β (β-globin), a protein, serving as an integral part of the adult hemoglobin A (HbA), which is a heterotetramer of 2 α chains and 2 β chains that is responsible for binding to the oxygen in the blood. This mutation changes a charged glutamic acid to a hydrophobic valine residue and disrupts the tertiary structure and stability of the hemoglobin molecule. Since in the field of protein intrinsic disorder, charged and polar residues are typically considered as disorder promoting, in opposite to the order-promoting non-polar hydrophobic residues, in this study we attempted to answer a question if intrinsic disorder might have a role in the pathogenesis of sickle cell anemia. To this end, several disorder predictors were utilized to evaluate the presence of intrinsically disordered regions in all subunits of human hemoglobin: α, β, δ, ε, ζ, γ1, and γ2. Then, structural analysis was completed by using the SWISS-MODEL Repository to visualize the outputs of the disorder predictors. Finally, Uniprot STRING and D2P2 were used to determine biochemical interactome and protein partners for each hemoglobin subunit along with analyzing their posttranslational modifications. All these properties were used to determine any differences between the 6 different types of subunits of hemoglobin and to correlate the mutation leading to sickle cell anemia with intrinsic disorder propensity.

Explanation:

7 0
3 years ago
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