Nondisjunction is defined as the failure of the chromosomes to seperate during cell division. An animal with a haploid number of 6 (diploid number of 12) undergoes meiosis, and at the meiosis II (cells are already haploid from the meiosis I), nondisjunction occurs. The mature ovum will contain 6+1 chromosomes (n+1) because there is an extra chromosome from the nondisjunction. The second polar body will contain 5 chromosomes (normal would be 6) because the second polar body did not receive that extra chromosome due to nondisjunction. In the event of fertilization of the abnormal ovum with a normal sperm, the zygote will be a diploid (12 chromosomes) normally but since the ovum as an extra chromosome from the nondisjunction then the zygote will have an extra chromosome (13 chromosomes). One pair of chromosomes has an extra single chromosome and this is called a trisomy.
Answer:
Success in individual sports requires that a person be proficient in all areas since there is no one else to compensate for failures. Please select the best answer from the choices provided. True.
Explanation:
The statement is true because is a fact that in individual sports the performance is just if one’s person responsibility. However, coaches have a lot to do in these aspects since they help in training and motivation. Compared with team sports, in those cases there are many people who have to work together and can build up their skills by complementing them.
Answer:
endurance
Explanation:
it’s the ability to use your muscles many times without tiring , and it’s the ability to withstand hardship or adversity
To keep everyone safe and proctetive
The correct option is B.
Family life cycle refers to the emotional and intellectual stages that one passes through from childhood to retirement age as a member of a family. There are five phases of family life cycle, these are: Independence, marriage, parenting, launching of adult children and retirement. <span />
