Answer:
The nervous system of the human body is categorized into two systems: the peripheral nervous system and the central nervous system.
The central nervous system includes the neurons or nerves of the spinal cord and the brain which controls the central role in receiving, analyzing and interpreting the stimulus.
The PNS or peripheral nervous system is composed of the nerves which arise outside the central nervous system. The nerves of the peripheral system connect the nerves of the body to the central nervous system. They send the stimulus to the brain and response of the central nervous system to the organs.
Answer:
Explanation:
Mendel’s results, that traits are inherited as dominant and recessive pairs, contradicted the view at that time that offspring exhibited a blend of their parents’ traits.
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Molecules move down their concentration gradient through the lipid bilayer with no assistance from transport proteins by means of simple diffusion, a form of passive transport.
B.
DNA --> transcription. DNA is transcribed to mRNA.
mRNA --> translation. mRNA goes to rRNA (ribosomes) and translates the mRNA sequence. tRNA brings the correct amino acids.
Amino acids form a growing chain and the final product is a protein.
Answer:
E. 1/16
Explanation:
In a duplicate dominant epistasis, when one locus presents a dominant genotype and the other presents a recessive genotype, the dominant one hides the effective of the recessive gene. Therefore, a recessive phenotype will only be observed when both genes are recessive homozygous (aabb).
Assuming a doubly-heterozygous mating (AaBb x AaBb), the probability that both genes are recessive homozygous is:
1/16 of offspring are expected to show the recessive phenotype.