Answer:
The correct answer is option D, that is, bottleneck effect.
Explanation:
A phenomenon, which occurs due to events like earthquakes, floods, or other natural calamities that result in the severe declination in the size of a particular population is known as the bottleneck effect. The bottleneck effect is an extreme illustration of genetic drift that results in the reduction of a population's genetic variability.
With the decline in the size of a specific population, a reduction in the genetic variability of the same population is witnessed due to the loss of alleles. This eventually makes the population vulnerable to pollution and diseases. Hence, the given case is an example of the bottleneck effect.
<h3><u>Connective tissue:</u></h3>
It is the layer under the epithelial tissue in the body. It is stronger than epithelial tissue and is found in many organs. It provides protection.
<h3><u>Epithelial tissue:</u></h3>
It covers the outside of the body like a veil. located in the outermost part of the body. Protects the body against microbes and infections.
<h3><u>Muscle tissue:</u></h3>
It is located in the joint areas and forms the support and movement system. It allows us to make bodily movements.
<h3><u>Nervous tissue:</u></h3>
It is the fastest communication tissue. It allows us to feel pain and the sense of touch. It is impossible to repair this tissue after it is damaged. It causes paralysis. It is very important as it plays a role in the activity of neural transmission.
Answer:
The correct answer is - There are five basic modes of inheritance for single-gene diseases: autosomal dominant, autosomal recessive, X-linked dominant, X-linked recessive, and mitochondrial.
Explanation:
The phenotype or external trait of an individual is determined by his or her genotype which is a combination of alleles received from the individual's parents. These alleles control if a trait is “dominant” or “recessive”.
These alleles can be autosomal, for traits related to somatic cells or X-linked, traits related to sex cells of an individual. Other than this there is a mitochondrial inheritance which comes from always from the mother's cytoplasm.
Cell
cycle can be divided into three phases:
1.
Resting-G0 phase
<span>·
</span>G0- the cell has left the cycle and has stopped
dividing.
2. Interphase
(G1, S and G2 subphases)
<span>·
</span>G1- the cell grows
<span>·
</span>S- cell duplicates its DNA
<span>·
</span>G2- cell is continuing with preparation
3. Cell
division-Mitosis (karyokinesis and cytokinesis)
<span>·
</span>Karyokinesis- the cell's chromosomes are divided
<span>·
</span>Cytokinesis- <span>the cell's cytoplasm is divided</span>
One can draw the conclusion that enzyme lowers the activation energy of reactants, increasing the rates of reactions.
Reactants need to summon the activation energy in order to transform into products.
<h3>Include activation energy when explaining how enzymes function.</h3>
Biochemical catalysts include enzymes. The activation energy of reactions is reduced by catalysts. A reaction will proceed more quickly the lower its activation energy. As a result, enzymes reduce activation energy to speed up reactions.
Enzymes are catalysts, so they have an impact on activation energy by lowering the amount of activation energy required, enabling chemical reactions to occur or proceed more quickly. It has no impact on how much energy is released during the reaction.
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