Answer:
well type o blood is really rare you can find o well i don;t know but A and B is not That rare so if you cross it 50% of people has A Blood and 80% of people has B Blood and only 2% of people has O Blood
Explanation:
The formular used for estimating the number of DNA copies after a particular number of cycle is 2^n, where n is the number of cycle. From the question given, number of cycle is 19. So, we have 2^19 = 524,288.
Therefore, after 19 cycles, there will be 524, 288 copies of DNA molecules.
Answer:
Se explanation
Explanation:
Mechanical waves are waves that require a material medium for propagation e.g sound waves and waves on a spiral spring.
Electromagnetic waves do not require a material medium for propagation. They can travel through space.
The light and heat of the sun are far away in outer space yet they reach us on earth. There is no intervening medium between the earth and the sun that conducts its rays to the earth. As a result of this, we can conclude that the rays from the sun are electromagnetic waves.