There are 9 questions and a total of 30 points. Please be careful to answer the question asked. Clarity and brevity are always encouraged.
1)How many cells are present at the end of meiosis? (2pt)
2)Name 2 ways that a cell at the end of mitosis is different from one that has just completed telophase 1. List one way that they are similar. (5pt)
3)How many chromosomes are found in human sperm? (2pt)
4)Briefly describe what occurs in anaphase. Be sure your description includes enough information so that the phase described can be distinguished from other phases. (5pt)
5)Define
the term phenotype. (3pt)
6)According
to the symbolic notation of Mendelian genetics what is the genotype of
a person suffering from an inherittable disease that is caused by a recessive
mutation? Be sure to define
any symbols. (3pt)
7)Choose
the most appropriate answer. Write only that answer on your answer sheet.
If the person in question #6 has children will those children have the
disease? (2pt)
Yes
No Cannot be deteremined
from the information given
For the following scenario we will assume that having
a loud voice is caused by a mutation in a single gene. The following hypothetical
pedigree is for a family with members who have loud voices. When appropriate,
be sure that you define any symbols used following the rules of Mendelian
genetics.
|
Gender?
|
Male
|
Female
|
Cannotbe determined from
this pedigree
|
|
Individual #? 4
|
6
|
7
|
12
|
Cannotbe determined from
this pedigree
|
|
Voice volume?
|
Loud
|
Normal
|
Cannotbe determined from
this pedigree
|