Corpus Callosum is a band of thick fibres which connects the hemispheres of the brain.
Answer:
Heart attack
Explanation:
Heart attack is the death of a part of heart muscles and severe pain that causes heart constriction having pain in the chest which spread to the left shoulder and down the arm thereby causing the feeling of pressure in the chest.
This is caused when a blood clots blocks blood flow to the heart thereby leading makes the tissue to loss oxygen and die.
The symptom of heart attack are;
pain in the chest, neck, back or arms, fatigue, lightheadedness, abnormal heartbeat and anxiety, nausea.
Treatment ranges from surgery, medication , rehabilitation e.t.c.
Answer:
The required pedigree is given in the attachment:
Refer to the key for understanding symbols.
Explanation:
- A record of occurrence of a trait in several generation of a human family is called pedigree analysis.
- It is quite easy to identify some forms of inheritance from study of pedigrees.
- The pedigree analysis is useful in sexually reproducing organism where number of offspring is small.
- It also helps us in giving information about the genotype of an individual; for trait under investigation.
- It also provides information to the would be couples regarding the danger of certain genetic defect which might run in their family.