Monday February 11th
Each one of the somatic cells (our body cells) has how many chromosomes?
46
Where did those chromosomes come from.
23 from your mother, 23 from your father.
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| We will be working with these chromosome models through this chapter. In this "cell" there are 46 chromosomes. All the blue ones are the 23 that we received from our fathers and the 23 red ones are those we received from our mothers. |
What two cells (from your parents) came together in order to give you the unique combination of DNA that you have?
Egg and Sperm
How many chromosomes did each of THOSE cells HAVE to have?
23
Tuesday February 12th
In asexual reproduction, how many parents contribute genetic information to the offspring?
One
How are the offspring related to the parent?
They are genetically identical (Clones)
In Sexual reproduction how many parents contribute genetic information to the offspring?
Two
How are the offspring related to the parents?
They are a combination of both parents DNA
Sexually reproducing organisms have sets of chromosomes known as Homologous chromosomes.
Wednesday February 13th
*Which type of reproduction provides more genetic diversity sexual or asexual reproduction?
Sexual. In sexual reproduction there are two parents that contribute DNA to the offspring. Because of this all the offspring will be slightly different (with the exception of identical twins) and the offpsring will all be a different combination of their parents DNA.
Sexual. In sexual reproduction there are two parents that contribute DNA to the offspring. Because of this all the offspring will be slightly different (with the exception of identical twins) and the offpsring will all be a different combination of their parents DNA.
*Sexual reproducing organisms contain cells that have TWO sets of Chromosomes (homologous Chromosomes). What is the name of these types of CELLS? Diploid. Di= 2
*How many sets of chromosomes are found in our sex cells? One - they are HAPLOID
Keystone QOD
Increased exercise can lead to an increased number of mitochondria in the skeletal muscle cells. Which of the following BEST describes the aspect of increased exercise that leads to this change?
Increased exercise can lead to an increased number of mitochondria in the skeletal muscle cells. Which of the following BEST describes the aspect of increased exercise that leads to this change?
A. Increased requirement of energy for immediate use
B. decreased supply of energy in long-term storage form
C. decreased time span for maintenance of recently stored energy
D. increased volume requirements for storing energy in stable form.
This question was really about the role of mitochondria. Remember, mitochondria are the organelles in our cells that produce ATP (our molecule of energy) So the question really was assessing if you know the role of the mitochondria.
This question was really about the role of mitochondria. Remember, mitochondria are the organelles in our cells that produce ATP (our molecule of energy) So the question really was assessing if you know the role of the mitochondria.
Notes From last week
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