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Ket [755]
3 years ago
12

HUISWELLICH

Biology
1 answer:
drek231 [11]3 years ago
4 0

Answer:

Nitrogen is an important nutrient for all plant cells, and it is component of the chlorophyll  found in leaves. Which of the following statements best describes how nitrogen is absorbed  and distributed to the leaves of the plant so that photosynthesis can take place?

Nitrogen is absorbed by the roots and distributed upwards through the xylem

Explanation:

Nitrogen are gotten from the ground by the plants before it is transported through xylem to the stem and then the leaves

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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
A landslide has isolated a part of the cicada population from the main population. After a few generations, the new generations
umka2103 [35]
<span>The bottleneck effect is the cause of the sudden shift in the genetic information of the population. Due to the landslide, suddenly high number of the members of the main population died, and this caused genetic drift for reducing the variation in the existing generation, which is now widely different from the original one.</span><span />
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3 years ago
What is conservation of energy
Bess [88]

Answer:

potential energy I would think

7 0
3 years ago
How many chromosomes do human reproductive cells contain ?
9966 [12]

Answer:

23 chromosomes.

Explanation:

Human gametes have 23 chromosomes.Reproductive cells (gametes) are haploid - they have half the number of chromosomes as a body (somatic) cell. HOPE IT HELPS:)

3 0
3 years ago
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