Which of the following type of mutation will have a neutral effect on the functioning of a protein?

The total number of organisms an ecosystem can support is its tolerance range.

Ostrovityanka [42]

Answer:

False

Explanation:

The carrying capacity of an ecosystem is the total number of creatures that it can sustain.

6 0

2 years ago

Three linked autosomal loci were studied in cucumbers: fruit color (dark vs. light), tendril size (long vs. reduced) and fruitin

Zina [86]

Answer:

Explanation:

1. Progeny observed in the experiment is calculated by adding all the progeny numbers observed in the :

TIME TO FRUIT TENDRIL SIZE FRUIT COLOR NUMBER

Normal normal dark 370

normal normal light 32

early normal light 971

early normal dark 28

early reduced dark 25

early reduced light 483

normal reduced light 36

normal reduced dark 810

TOTAL

PROGENCY 2755

2. The locus in the center is TIME TO FRUIT. Tendril size is at the beginning of the locus and the distance between the locus B and locus C is R2

3 0

3 years ago

Fossilized non-seed vascular plants from the ____________________ Period have been identified. a. Devonian c. Permian b. Cambria

Ipatiy [6.2K]

Fossilized non-seed vascular plants from the Devonian period have been identified.
The Devonian is an early period and conformity of the Paleozoic Epoch forming from the edge of the Silurian Era.

6 0

3 years ago

Researchers want to use edna to look for an invasive species in a waterway. which of these steps should they do last? a. precipi

VikaD [51]

The step at which the researchers would do at the end of researching Edna is to amplify the amount of DNA.

Option (d);

EXPLANATION:

The term EDNA means Environmental DNA.
Invasive species in the waterway are the waterborne plants and animals who can likely cause effects to the human as well as the environment.
If researchers want to use eDNA to look for invasive species in the waterway, they will first collect a sample.
After cutting DNA into pieces, DNA would be precipitated in each sample.
And in the end, the amount of DNA would be amplified in each sample to understand how it would cause harm to the environment.

5 0

3 years ago

Drag each tile to the correct box.

levacccp [35]

Complete question:

Drag each tile to the correct box.

Lucia is walking barefoot in her yard. She accidentally steps on a nail. How will her nervous system work to generate a reaction? Arrange the events chronologically.

Interneurons relay the impulse to motor neurons in the spinal cord.
She immediately moves her foot.
The sensory neuron generates an impulse.
Receptors in her toe receive stimuli.
Motor neurons signal the leg muscles.

Answer:

4. Receptors in her toe receive stimuli

3. The sensory neuron generates an impulse.

1. Interneurons relay the impulse to motor neurons in the spinal cord.

5. Motor neuron signal the leg muscles

2. She immediately moves her foot.

Explanation:

The reflex arc refers to an action mechanism that responds to different stimuli. It is an involuntary reaction involving different nervous vias. The reflex arc is composed of receptors, afferent nervous fibers, efferent nervous fibers, and effectors.

Receptors are located in nervous terminals and are widely distributed in the organism. Receptors are capable of receiving stimuli from different nature, and most of them are specialized in one kind of stimuli such as vision, audition, touch, among others. In the exposed example, these sensory receptors were located in the toe, and probably they were touch receptors.

When they receive the stimulus the sensory neuron transforms it into an excitatory nervous impulse that goes to the central nervous system along the afferent nerves. This stage is known as the afferent via, beginning with the environmental information received by sensory receptors, and ending in the arrival of the transcripted message to the central nervous system.

When the central nervous system receives the information, it processes it and sends an appropriate answer according to the stimulus. The message goes along the interneurons to the motor fibers, which are in charge of taking that answer to its destiny, the effectors. Effectors are usually muscles or glands, and they transform the received impulse into a motor answer that executes the reflex action. In the exposed example, the effector in the muscle. This stage is known as the efferent via, beginning in the central nervous system sending an answer impulse and ending in the effector (muscle) executing the answer.

4 0

3 years ago