Cytokine release syndrome might lead to the dysfunction of multiple organs. It is widely seen in Covi-19 patients.
<u>Explanation:</u>
Cytokine release syndrome arises when cytokines are released in a large number in our blood. This release takes place from our immune system. Cytokines are secreted by one cell and affect other cells. It causes inflamation.
In the case of Covi-19 it has been observed that Cytokine release syndrome plays a major role in affecting our immunity. So it is of utmost importance to study CRS in such patients. Cytokine release syndrome develops mostly after a viral infection in the body.
Answer:
C) 91%
Explanation:
First,
Express the Dominant phenotype as homozygous dominant(BB) and heterozygous(Bb).
Based on hardy-Weinberg equilibrium,
homozygous dominant (BB) Brown eye individuals will have the following percentage
B × B
(Where B = 70%)
70% × 70%
= 49%
heterozygous dominant (Bb) Brown eye individuals will have the following percentage
Using 2 × B × b (where B =70% and b = 30%)
2 × 70% × 30%
= 42%
The proportion of the subsequent generation with brown eyes
(homozygous dominant, BB + heterozygous dominant, Bb)
= 49% + 42%
= 91%
Answer:
Zhoukoudian
Explanation:
Zhoukoudian can be seen as a cave system which is found in suburban Fangshan District, Beijing in which It has yielded many archaeological discoveries, which include one of the first specimens of Homo erectus , dubbed Peking Man,as well as a fine assemblage of bones of the gigantic hyena Pachycrocuta brevirostris.
The cave was identified as Homo erectus and it said to have more than 10,000 pieces of stoneware, several cinder layers indicating fire use in early man, as well as animal fossils which are from 200 separate species.
Therefore Zhoukoudian is the homo erectus site that provides the longest record of habitation
The correct answer is C. It is taken in from the air
Explanation:
Carbon dioxide is a gas that exists mainly in the air or atmosphere. Additionally, this chemical compound is required for plants as part of photosynthesis (process to produce energy). In this process, plants take dioxide from the air through the leaves' stomata, which are small spores, use this along with sunlight and water to produce energy, and later release oxygen. According to this, carbon dioxide is taken from the air by plants (option C) while oxygen is given off.
Answer:
The correct answer is option b. "Enzymes display high specificity with respect to their substrates".
Explanation:
One of the characteristics of most enzymes is their high specificity towards their substrates. This is illustrated in the experiment herein stated. Glucose is the main substrate of Hexokinase, since it catalyzes the reaction between glucose and ATP to form glucose 6-phosphate and ADP. In this experiment, different sugars were substituted for glucose in Hexokinase's reaction , and the results show that the relative rate of reaction was reduced to 0.4 in the case of mannose, and up to 0.0 in the case of xylose. Since no sugar was able to have the same relative rate of reaction as glucose, we can conclude that Hexokinase is highly specific to its substrate.
