B.1.22 Understand and explain the genetic basis for MendelÕs
laws of segregation and independent assortment.
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Molecules and Cells |
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7.4.3 Explain how, in sexual reproduction, a single specialized
cell from a female merges with a specialized cell from a male & this
fertilized egg carries genetic information from each parent & multiplies
to form the complete organism. |
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B1.1Recognize that and explain how the many cells in an
individual can be very different from one another, even though they are all
descended from a single cell and thus have essentially identical genetic
instructions. Understand that different parts of the genetic instructions are
used in different types of cells and are influenced by the cellÕs environment
and past history. |
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B.1.8 Understand and describe that all growth and development is
a consequence of an increase in cell number, cell size, and/or cell products.
Explain that cellular differentiation results from gene expression and/or
environmental influence. Differentiate between mitosis and meiosis. |
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Developmental and
Organismal Biology |
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B.1.11 Describe that through biogenesis all organisms begin
their life cycles as a single cell and that in multicellular organisms,
successive generations of embryonic cells form by cell division. |
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We are sorely missing an important link here, elucidating the
reason that Mendel's laws of dominance (etc) are possible. How does genotype
influence phenotype? |
Genetics
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B.1.23 Understand that and describe how inserting, deleting, or
substituting DNA segments can alter a gene. Recognize that an altered gene
may be passed on to every cell that develops from it, and that the resulting
features may help, harm, or have little or no effect on the offspringÕs
success in its environment. |
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B.1.26 Demonstrate how the genetic information in DNA molecules
provides instructions for assembling protein molecules and that this is
virtually the same mechanism for all life forms. |
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B.1.28 Illustrate that the sorting and recombination of genes in
sexual reproduction results in a great variety of possible gene combinations
from the offspring of any two parents. Recognize that genetic variation can
occur from such processes as crossing over, jumping genes, and deletion and
duplication of genes. |
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B.1.29 Understand that and explain how the actions of genes,
patterns of inheritance, and the reproduction of cells and organisms account
for the continuity of life, and give examples of how inherited
characteristics can be observed at molecular and whole-organism levels - in
structure, chemistry, or behavior. |
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Evolution |
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B.1.35 Explain that the degree of kinship between organisms or
species can be estimated from the similarity of their DNA sequences, which
often closely matches their classification based on anatomical similarities.
Know that amino acid similarities also provide clues to this kinship. |
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Ecology |
Historical
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B.2.4 Explain that after the publication of Origin of
Species, biological evolution was
supported by the rediscovery of the genetics experiments of an Austrian monk,
Gregor Mendel, by the identification of genes and how they are sorted in
reproduction, and by the discovery that the genetic code found in DNA is the
same for almost all organisms. |
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