Answer:
Autonomic regulation of heart is via two reflex centers that are found in medulla oblongata
Explanation:
Medulla oblongata contain long stem that makes the upper part of brain case and this is a cone shaped structure which is responsible for autonomic regulation like controlling heart rate,vomiting,respiration,breathing etc.
The heart rate is controlled by autonomic nervous system that are mainly sympathetic and parasympathetic nervous system that releases hormones like catecholamine (epinephrine and non epinephrine) which helps in controlling the heart rate.
Medulla oblongata mainly connects the brain with the spinal cord that are responsible for responsible for the autonomic functions which contain -
Controlling the ventilation via signalling system regulated by chemo receptors which detects change in acidity of the blood.
Acts on cardiovascular centers.
Controlling the reflex centers like vomiting,coughing,sneezing,swallowing etc.
Answer:
The correct answer will be- genetic engineering
Explanation:
Genetic engineering is a group of techniques employed to manipulate the DNA of the organisms which can help regulate the phenotype of the organism.
The genetic engineering aims at selecting the desired trait to be passed on to the progenies eliminating the harmful traits so as to benefit the organisms. The scientist selects the genes of the trait and then clone it to introduce it to the species.
Since the scientist can select the desired trait through techniques and manipulates the DNA therefore genetic engineering is the correct answer.
Answer:
The fact that the amino acid chain is consistently having more amino acids than what is actually present can be attested to the fact of how gene expressions can be observed in the prokaryotic cell compared to the eukaryotic one.
Full moon. a full moon happen quite often.
Answer:
Option (b).
Explanation:
Genes may be defined as the functional segment of DNA that are heritable in nature. Genes are responsible for the genotype and phenotype of the living organisms.
The eye color in case of humans is the example of polygenic inheritance. The eye color is controlled by more than two different genes and not just by the two alleles of a particular gene. The presence of the different alleles in the different individuals determine the eye color.
Thus, the correct answer is option (b).