The childhood and early career of Charles Robert Darwin is discussed below.
<h3><u>Explanation</u>:</h3>
Charles Robert Darwin was born on 12 February 1809 in Shrewsbury, Shropshire. He was the fifth of six children of wealthy society doctor and financier Robert Darwin and Susannah Darwin. His grandfathers Erasmus Darwin and Josiah Wedgwood were both prominent abolitionists of the recent times.
Darwin started his career as an apprentice doctor, helping his father treat the poor of Shropshire, before he started to go to the University of Edinburgh Medical School. He found the lectures dull there and in his second year at the university he joined the Plinian Society, a student natural-history group. His father then sent him for a Bachelors of Arts degree which also he couldn't peruse.
After a long fight, he went on his famous voyage on HMS Beagle around the world where he collected his data and then gave his hypothesis in his book named '' On the Origin of Species by means of Natural Selection and Preservation of the Favoured Race in the Struggle for Life''
Answer:
Seed dormancy is defined as the process in which seed are prevented from germination even though environmental conditions are favoring.
There are several ways in which seed dormancy can be broken. Some of them are as following:
<u>Scarification:</u> scarification is a mechanical technique to breakdown the seed dormancy. In this technique, hard seed coat is removed from the seed under cold temperature.
<u>Hot water treatment: </u>The seed is kept into hot water between the 75 degree to 100 degree, that helps in removal of seed coat and allow germination of plant.
<u>Sodium hypochlorite solutions:</u> sodium hypochlorite (NaOCl) solution breakdown the seed dormancy by decomposing germination inhibitors, increases α-amylase activity and scarifying the seed coat.
Hence, three ways to break seed dormancy are Scarification, Hot water treatment, and Sodium hypochlorite solutions.
Changing one amino acid in the protein hemoglobin causes sickle-cell anemia.
Gene regulation or Gene expression can be defined as a synthesis or make up of protein/RNA(Non-coding). In turn b-globin is (developing red blood cells in and only because its already programmed to).
Answer:
B: Hyperosmotic solutions may cause the cell to shrink.
Explanation:
