Considering the following choices;
A. to determine the gender of a fetus
B. to determine if a fetus has the correct number of chromosomes
C. to identify chromosomal defects
D. to identify the pattern of inheritance of a particular trait
Answer;
D. to identify the pattern of inheritance of a particular trait
Explanation;
The pedigree chart shows the occurrence of the phenotypes (observable characteristic) of a certain gene or genes between ancestors and predecessor.
It is created in order to find patterns of inheritance and see what the most important traits that get inherited are.
Answer:
Lysosomes.
Explanation:
The cell constitutes of the different cell organelle that plays an important role in the living organism. The cell organelle of Eukaryotes are membrane bound organelle.
Different cell organelle are lysosomes, mitochondria, Golgi body and endoplasmic reticulum. Lysosomes is known as suicidal bag as it has the ability to digest its own protein. They plays an important role in intracellular digestion as they have the acidic environment and enzymes that can digest the content of its own cell.
Thus, the correct answer is option (2).
Answer: Blood sugar/blood glucose levels are controlled by negative feedback involving the hormones human insulin and glucagon.
Explanation:
Insulin is produced in the increased , if there is too little glucose in the blood the pancreas is triggered and released more insulin to change glucagon into glucose, this regulates the amount of glucose in the blood. However if there is too much glucose in the blood (after a sugary meal) the pancreas is triggered to use insulin to lower the blood glucose levels, this is called negative feedback. This works by storing glucose as glucagon in the blood, insulin can be objected into the blood stream if a person needs it straight away(eg type 1 diabetes.)
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Answer: d, seasonal cycles
Explanation: it doesn't affect the population.
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