The nucleus is what houses the cells genetic information. Hope this helps!
Red blood cell is shaped as a biconcave discs, this shape allows them to squeeze through small capillaries.
The biconcave shape of the cell allows oxygen exchange at a constant rate over the largest possible area. The biconcave shape increases the cell's surface area compared to a flat disk of the same size. The greater surface area makes it easier for gases to move into and out of the red blood cell.
The biconcave shape provides a large surface area compared to the volume of the red blood cell, allowing diffusion to happen efficiently. This shape optimizes the ratio of surface area to volume, facilitating gas exchange. It also enables them to fold up as they move through narrow blood vessels.
To learn more about biconcave discs ,here
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Answer:
2 out of 4
Explanation:
Let the allele for cleft chin be represented by A, while the alternate recessive version would be a.
A parent that is heterozygous for cleft chin would have the genotype Aa.
A parent without cleft chin would have the genotype aa.
Aa x aa
Aa Aa aa aa
Aa - cleft chinned = 2/4
aa - normal chin = 2/4
Thus, two out of every four (2/4) of their offspring would have cleft chin.
Answer: Eye drops are effective when it placed into the eyes with care and proper instructions.
Eye drops should be placed in the lower conjunctival sac that starts at the inner side of the eye not the outer side called as canthus.
If the eye drops are dropeed on the cornea of the eyes and this causes discomfort and hence should be avoided.
It should not be placed on the opening of the lacrimal ducts otherwise it will avoid the systemic absorption.
