Answer:
1. B. Medulla oblongata contains cardiac, respiratory, vasomotor and reflex centers.
2. A. Hypothalamus is the major regulator of ANS
3. D. Occipital lobe is the location of visual cortex.
4. F. Sensory areas are primary site responsible for perceiving cutaneous sensory sensations and proprioception.
5. E.Motor areas directs conscious motor movement
6. C. Cerebellum - coordinates movement by comparing intended movement with actual movement.
7. K. Corpus callosum allows communication between right & left cerebral hemispheres.
8. J. Frontal Lobe - Cognition, personality.
9. A. Hypothalamus - Contains hunger, thirst and thermoregulatory centers.
Answer:
The correct answer is 35 percent.
Explanation:
Allele D produced tiny ears, and allele d produces normal ones. If a heterozygous male with Dd mates with the homozygous female with dd, then generally, the expected offspring produced will be 50 percent with tiny ears, and 50 percent with normal ears.
However, in the given case, the penetrance is 70 percent. Thus, the probability of the offspring with tiny ears will be:
Penetrance = 70 %
Probability = 70 % of 50 % of 100
= 70/100 * 50/100 * 100
= 35 %
Hence, the probability of the offspring with tiny ears is 35%.
Answer:
A) Anaphase I
Explanation:
During the Anaphase I of meiosis, the pairs of homologous chromosome split up. During this phase sister chromatids of each pair is formed and start moving towards the opposite poles. By the end of anaphase out of each pair of sister chromatids , reaches to the poles of the spindle fibre. During the metaphse of meiosis the chromosomes start their movements and arrange themselves between the poles and the equator of the spindle.
Answer:
DNA stores biological information in sequences of four bases of nucleic acid — adenine (A), thymine (T), cytosine (C) and guanine (G) — which are strung along ribbons of sugar- phosphate molecules in the shape of a double helix.
Explanation:
Answer:
I believe it is the 3rd one ( bottom one)
