Answer:
A) One of the genotype i.e true breed white is lethal
B) No
Explanation:
A) Two hamsters with white spots are crossed, 2/3 of the offspring possess white spots and 1/3 has no spots.
This means that the two white hamsters would be carrier for the trait of no spot.
The ratio for offspring signifies that one of the offspring dies because of lethal genotype.
B) No, because the true breed for white spotting is lethal.
However, heterozygous white spotting can be detected.
Answer:
Pass information by generating electric signals
Explanation:
Neurons are the fundamental unit of the nervous system. Neurons send information across the body through generation of electric signals called as action potential. There are basically three types of neurons
a) Sensory neurons which carry information from the sense organs in the form of impulse to the central nervous system (CNS)
b) Motor neurons – These carry information from the CNS to the body parts such as sense organs, muscles etc.
c) Interneurons – They are connecting neurons which are responsible for transferring information from one neuron to the other neuron.
The answer is b - high diversity and food.
Having a high starting diversity is an absolute prerequisite for a certain area to even start having a lot of different organisms living in the same spot. The other prerequisite is having a lot of food. This enables the nourishment of big numbers of different species which enable high biodiversity.
Answer:
Option (I) and (IV).
Explanation:
Fatty acids may be defined as the carboxylic acid that contains the long aliphatic chain. Fats are generally of two types - saturated fatty acid and unsaturated fatty acid.
The fatty acids are generally synthesized in the two carbon units. This helps in the proper synthesis of fat. The fatty acids that are most common in plants and animals are palmittic acid or the fats that contain C16 and C18 species predominate.
Thus, the correct answer is option (I) and (IV).