1/6 Biology update and homework due 1/13

Hi folks,

Today we began preparing for our unit on genetics.  We learned about sexual vs. asexual reproduction and the advantages and disadvantages of each.  We also learned a bit of the vocabulary needed for next week's genetics lesson.

Two assignments for homework this week.

1.  Do the questions in this email.

2.  Do page 1 of the enclosed .pdf.  (you did page 3 last week but you may want to do it again to review.  It makes great quiz material.  :)  )  By the way, in question one I'm looking for putting the stages in ORDER from 1 - 9.  This is pretty tricky so take your time on this.

Answers are included a separate .pdf. 

1.  What are the five types of asexual reproduction?  (This website has a nice write up of each if you want to take a look. https://www.thoughtco.com/types-of-asexual-reproduction-1224623)

2.  Now that you've given me a list of all five, please tell me what each one is.

3.  Please list 2 advantages for sexual reproduction.

4. Please list 2 advantages for asexual reproduction.

5.  Please list 2 disadvantages for sexual reproduction.

6. Please list a disadvantage for asexual reproduction.

7.  In humans there are 23 pairs of chromosomes but there are really 46 chromosomes.  Why do we say that there are 23 pairs instead of just saying 46 all the time?  It's not like we say there are 6 pairs of eggs in a carton or 3 pairs of Coke in a six pack.

8. Cousin Ted walks up to you and says,  "Why do they say homologous chromosomes and not identical chromosomes.  Aren't they identical? What's with the fancy words?!  Jeesh!"  How do you respond?

9.  Starting from just before the s phase and finishing at the end of meiosis, fill in the blanks to tell me how we go from 46 chromosomes to 92 chromatids to 46 chromatids to 23 chromatids.

In S phase the chromosomes duplicate and go from ______  to ________ chromosomes.

In prophase 1 the chromosomes concentrate/condense to form ____________________.

After Telophase 1 we end up with ___________cells, each of which has ____________ chromatids.

After Telophase 2 we end up with _______cells, each of which has ___________ chromatids.

10.   What is the definition of allele?  

11.   Cousin Ted is back "Hey, alleles and genes.  Same things!  What's the difference?!"  Explain gently to Cousin Ted what the difference is and give him two examples.