Answer:
The probability will be 25% (1/4)
Explanation:
Schilder's syndrome is a degenerative and progressive lethal disease caused by the demyelination of nerve cells in the brain and spinal cord. Since it is a lethal recessive autosomal disease, both the father and the mother have a single copy of the mutant allele, thereby the probability of obtaining a lethal combination will be:
SN X SN >>
1/2 x 1/2 = 1/4 = 25%
where N and S are normal and lethal alleles, respectivelyvely
Answer:
The correct answer will be option-A
Explanation:
The respiratory system is the series of organs which is links the internal gases with atmospheric gases that is it is responsible for the exchange of gases in the animal kingdom.
The respiratory system involves the intake of oxygen and exhalation of carbon dioxide as a waste product.
The primary organs involved in the respiratory system are the lungs which along with the circulatory system transports the oxygen to every cell of the body.
Since the respiratory system along with the circulatory system allows the transport of oxygen to every cell therefore, option-A is the correct answer.
Answer:
Option A
Explanation:
Only an autotrophic species can convert methane into food.
Deep below the sea, methane and hydrogen sulfide are found in abundance. These gases get mixed into the sea water.
Autotrophic bacteria containing phosynthetic pigments oxidize these dissolved gases thereby producing food.
Hence these autotrophic bacteria’s will be considered as producers as they produce food.
Thus, option A is correct.
Well, while it is true that the plant cell wall is rigid it's more important that it stretches. That's how it protects.
