Answer:
A) nutrient A only
Explanation:
In this case, enzyme A is required for the digestion of nutrient A, thereby evidencing that the mutation affects the enzymatic pathway and the mutant strain only can grow by supplementation with this nutrient. In molecular biology, mutant strains are useful to study enzymatic functions (for instance, the role of enzyme A in nutrient assimilation), as well as to examine downstream signaling pathways.
In experimental design, spontaneous mutations are induced to study their effects on the phenotype. Subsequently, reverse mutations may also be induced to reverse the forward mutation, thus restoring the original wild-type phenotype.
Answer: the answer to this is D because these rays can show you where the fire is located even if it is enveloped in a cloud of gray and black smoke that prevents you from seeing it.
Explanation:
The giant axon of a squid, shows that hyperpolarizing stimulus is followed by transient inward capacitive current and lasting outward capacitive current.
Hyperpolarization is a change in a cell's membrane potential that makes it more negative. It is the opposite of a depolarization. It inhibits action potentials by increasing the stimulus required to move the membrane potential to the action potential threshold.
Hyperpolarization can be caused, for instance, by opening channels that allow positive ions to move out of the cell (or negative ions to move in).
The hyperpolarization-activated current is an inward current activated by hyperpolarization from the resting potential and is an important modulator of action potential firing frequency in many excitable cells.
To learn more about hyperpolarization here
brainly.com/question/27181895
#SPJ4
Cryo=a
atmosphere =b
biosphere =d
hydro=e
litho=c
<h2>Answer is option "A"</h2>
Explanation:
- Skeletal muscle tissue structures skeletal muscles, which join to bones or skin and control headway and any development that can be deliberately controlled. Since it very well may be constrained by thought, skeletal muscle is additionally called willful muscle.
- Skeletal muscle likewise has numerous cores present in a solitary cell. Smooth muscle has no striations, isn't under deliberate control, has just a single core for each phone, is decreased at the two finishes, and is called automatic muscle. Cardiovascular muscle tissue is just found in the heart, and cardiovascular compressions siphon blood all through the body and keep up circulatory strain. It has one core for every cell, is spread, and is recognized by the nearness of intercalated plates.
- Hence, the right answer is option a "All of the listed statements are true"
