<span> This is an example of a quantitative </span><span>observation</span>
Answer: Crossing over is a biological occurrence that happens during meiosis when the paired homologs, or chromosomes of the same type, are lined up.
Explanation:
The nasal cavity refers to the inside of the nose. It is a hollow space inside the nose and skull, which is surrounded with hairs and mucous membrane. The main function of the nasal cavity is to moisturize, warm, and filter the air getting inside the body before it gets inside the lungs.
The superior body of the nasal cavity is formed by four bones, that is, from anterior to posterior. These are:
1. Nasal
2. Frontal
3. Ethmoid (cribriform plate) and
4. Sphenoid (body)
Flagellum
Flagellum, plural flagella, hairlike structure that acts primarily as an organelle of locomotion in the cells of many living organisms.
Answer:
The correct answer is - A. 25%.
Explanation:
In humans, the blood group system is known as the ABO system where blood groups A and B are codominant and O blood group is recessive. The genotype of the A blood group could be AA or AO similarly for the B blood group genotype would be BB or BO, for the O blood group OO whereas for the AB blood group both A and B alleles should be present together.
Cross: AB blood type father with an A blood type mother (genotype AO)
Gametes: A, B and A, O
Punnett square:
A B
A AA AB
O AO BO
Here, there are 25% chances of AB blood group offspring 50% for the A blood group (AA and AO) and 25% B blood group (BO).