Response Page

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Response Page

• In Labrador dogs the brown fur allele is dominant
  to the yellow fur allele.
• On your RP make a punnett square to cross a
  heterozygous brown with a homozygous yellow.
  What would the phenotypes and genotypes be of the
  puppies?

2

• Write this
• Bb x bb
• B b
• b
• Bb bb
• b
• Bb bb
• .

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Wed 3/12

• No Response page today. Read
• over your Balderdash words even if
• you made a 104

Standard S7L3. Students will recognize how
biological traits are passed on to successive
generations.
Today in Science ! Balderdash Retest Finish DNA
and RNA page Finish Sponge Bob HW Get notebook
organized. New HW Punnett Square WS
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Response page
Wed 3/12

• Make a punnett and cross a heterozygous for
  freckles Ff with a homozygous no freckles ff

Standard S7L3. Students will recognize how
biological traits are passed on to successive
generations.
Today in Science ! Balderdash Retest Finish DNA
and RNA page Finish Sponge Bob HW Get notebook
organized. New HW Punnett Square WS
5
Thu 3/13

• No Response Page Today.
• Take a few minutes to update your Table of
  Contents.
• New Stuff beginning today!

Standard S7L3. Students will recognize how
biological traits are passed on to successive
generations.
Today in Science ! Balderdash Retest in 6th and
7th Turn in the following Sponge Bob
Genetics -25 Due tomorrow for 100
Punnett Square WS NB 15 DNA vs RNA
NB 14
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Meiosis Notes

• You will not copy all the slides, I will let you
  know what to write. Part of these notes will be
  your own summary

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Write this !

• Karyotype- A picture of chromosomes in mitosis
  arranged according to homologous pairs. Humans
  have 23 pairs or a total of 46 chromosomes.
• Autosomes are chromosomes 1-22 the non-sex
  chromosomes

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This is a karyotype of a human females
chromosomes. How can you tell that these are
from a female?
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Describe what a karyotype looks like?

• Add this
• All boys have X Y
• All Girls have X X

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• Chromosomes are easiest to see in this structure
  during metaphase when they are being copied.
  What you
• actually see is a double set
• of chromosomes that are
• about to split, totaling
• 92 chromosomes. After
• cell division each daughter
• cell will have 46
• chromosomes.

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• Cell Division by Meiosis- Only sex cells are
  created this way- The new cells will have a HALF
  set of genetic information. Half the number of
  chromsomes.

• Cell Division by mitosis- All body cells are
  copied by this process- The new cells have a FULL
  set of genetic information- same number of
  chromosomes

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Fertilization- the joining of sperm (a haploid
cell) and egg (a haploid cell).
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The newly fertilized cell (or zygote) will
contain a full set of genetic information
(diploid cell) and will then grow into more cells
through the process of mitosis.
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Segments of DNA that control an organisms
characteristics are called genes. Parents
contribute one allele each to their offspring for
every gene (20,000 diff genes).
About 1200 nucleotides make up one gene.
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Each of the chromosomes pictured here were
contributed from a different parent. One
parents allele for flower color is purple and
the other parents allele for flower color is
white. Alleles are different versions of the
same gene.
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How are genes and alleles different?

• A gene is a section of DNA that codes for one
  trait. There are normally two alleles for each
  trait. Ex there is a gene for freckles and an
  alleles for freckles F or an allele for no
  freckles f.
• Complete the following chart using the textt book.

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2 and 3rd stopped here Mitosis (p 100 127) Meiosis (p 128)
of Parent Cells
of Daughter Cells
Daughter cell chromosomes (humans)
Are daughter cells Haploid or diploid?
How many divisions?
How do the new cells compare to parent cell?
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Who is a Harry Potter fan?

• http//www.slideserve.com/presentation/4747/Harry-
  Potter-Genetics-Powerpoint--Fun
• This is the Harry Potter power point that we
  watched Monday or Tuesday.