Answer:
Eukaryotic DNA never leaves the nucleus; instead, it's transcribed (copied) into RNA molecules, which may then travel out of the nucleus.
Explanation:
B. False
Totally incorrect. Some pathogens and microorganisms that is blood-borne can transfer itself from one individual to another by blood and fluid contact. This is a much stronger affinity for the pathogen to spread from the host to the person transferred to.
Answer:
Bb, BB, bb
Explanation:
Based on the information given by the question, there seems to be a 50% chance for there to be a baby born with blue eyes or brown eyes. Because B (brown eyes) is the dominant allele and b (blue eyes) recessive, You know that if a child is to have brown eyes, they will either will have the genotype BB or Bb, and if the child is to have blue eyes, it will have the sequence bb.
Extra Point:
The only way to give a 50% chance of a child having blue or brown eyes, as shown by the 10 babies with brown eyes and the 10 with blue, the parents must have a sequences of:
B b
b Bb bb
b Bb bb
- I can't make a Punnet Square using this application, but I hope that you see that one parent must have the Bb genotype, and one the bb to give the 50% chance of a child having blue or brown eyes.
Of course, not all parents will have this sequence, but for the purposes of study I wanted to show this. Also I'm sorry for any confusion you have with my answer, I haven't done biology in a long time, so this is based on bits and pieces of what I learned.
