Genetics module 1 portage learning
1. 1.1 selective breeding <Ans> the process of selecting organisms with
desired traits(strength, speed, agility, intelligence) to be parents of the next
generation for the human advantage
EXAMPLES <Ans> camals, dogs, wolves, horses)
2. 1.1 Epigenesis and performation <Ans> The understanding of human
genetics be- yond selective breeding increased in the 1600s when William Harvey, a
development specialist, proposed epigenesis.
it was a concept that a fertilized human egg undergoes specific developmental
events that eventually lead to the formation of a human
At the time, this theory directly contradicted the idea of preformation, in which a
fertilized egg contained a tiny version of a completely developed adult termed a
homunculus
3. 1.1 cell theory <Ans> it was introduced by Matthias Schleiden and Theodor
Schwann, proposing that all living organisms were composed of organized
structures called cells and that these cells were derived from identical precursor
cells.
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, 4. 1.1 spontaneous generation <Ans> The idea that living things can
spontaneously generate from nonliving components (dust can become fleas)
5. 1.1 Natural selection <Ans> theory made by Charles Darwin
More offspring are produced then an environment can support the strongest will
survive in
Survival in a crowded environment would lead to struggle within a population, so
the offspring that inherited the most desirable traits for a certain environment would
ultimately survive
EXAMPLE <Ans> in a mountain environment, animals that were well-adapted for
climbing steep cliffs or surviving harsh winters would survive much longer than
those that had difficulty balancing on rough surfaces or that possessed a thin
outer covering.
6. 1.2 genetics <Ans> defined as the study of heredity, was first coined in the early
1900s and focuses primarily on the understanding of genes and how they
contribute to the passing of traits
7. chromosomal theory of inheritance <Ans> introduced in the 1910s by
showing that both heredity and development depended on the passing of genetic
information via genes that were contained within chromosomes
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11
1. 1.1 selective breeding <Ans> the process of selecting organisms with
desired traits(strength, speed, agility, intelligence) to be parents of the next
generation for the human advantage
EXAMPLES <Ans> camals, dogs, wolves, horses)
2. 1.1 Epigenesis and performation <Ans> The understanding of human
genetics be- yond selective breeding increased in the 1600s when William Harvey, a
development specialist, proposed epigenesis.
it was a concept that a fertilized human egg undergoes specific developmental
events that eventually lead to the formation of a human
At the time, this theory directly contradicted the idea of preformation, in which a
fertilized egg contained a tiny version of a completely developed adult termed a
homunculus
3. 1.1 cell theory <Ans> it was introduced by Matthias Schleiden and Theodor
Schwann, proposing that all living organisms were composed of organized
structures called cells and that these cells were derived from identical precursor
cells.
1/
11
, 4. 1.1 spontaneous generation <Ans> The idea that living things can
spontaneously generate from nonliving components (dust can become fleas)
5. 1.1 Natural selection <Ans> theory made by Charles Darwin
More offspring are produced then an environment can support the strongest will
survive in
Survival in a crowded environment would lead to struggle within a population, so
the offspring that inherited the most desirable traits for a certain environment would
ultimately survive
EXAMPLE <Ans> in a mountain environment, animals that were well-adapted for
climbing steep cliffs or surviving harsh winters would survive much longer than
those that had difficulty balancing on rough surfaces or that possessed a thin
outer covering.
6. 1.2 genetics <Ans> defined as the study of heredity, was first coined in the early
1900s and focuses primarily on the understanding of genes and how they
contribute to the passing of traits
7. chromosomal theory of inheritance <Ans> introduced in the 1910s by
showing that both heredity and development depended on the passing of genetic
information via genes that were contained within chromosomes
2/
11
