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31 Cards in this Set
- Front
- Back
The practice of breeding plants or animals for desirable traits is known as
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selective breeding
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Any trait that helps an organism to survive in its environment is called an
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adaptation
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Occasionally an error occurs during the process of DNA replication. This
kind of change is called a |
mutation
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is one that an
organism develops after it is born. |
acquired trait
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Each trait of an organism is determined by a short segment of DNA known
as a |
gene
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gene is not expressed if an offspring receives
genes for two different forms of the same trait. |
recessive
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offspring are produced
from one parent. |
asexual reproduction
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If an offspring receives genes for two different forms of a trait, the trait of
the __________gene is expressed. |
dominant
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What is asexual reproduction? Name something that
reproduces asexually. |
In asexual reproduction, offspring are produced from one parent. The following reproduce asexually: bacteria; many protists; yeast.
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What is sexual reproduction? Name something that
reproduces sexually. |
Sexual reproduction occurs when a female gamete joins with
a male gamete to form a new organism. The following reproduce sexually: yeast; algae; plants; animals. |
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What is the difference between a purebred organism and a hybrid?
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A purebred organism has two identical genes for a trait.
A hybrid has two different genes for the same trait. |
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What is the goal of hybridization?
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to produce a hybrid organism with the best traits from both
parents |
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What is this animal’s type of
adaptation called? How does this adaptation protect the animal? |
Camouflage. It protects the animal by making it look like a twig, which allows it to hide from birds.
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is the process through which traits are passed from parents to offspring.
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Heredity
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A(n) ___________is one that an organism develops after it is born.
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acquired trait
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__________traits are traits that people
deliberately change. |
Manipulated
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The information that determines inherited traits is
stored within the cell nucleus in a molecule called |
DNA
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Each trait of an organism is determined by a short segment
of DNA called a(n) |
gene
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The basic units of DNA are called
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nucleotides
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A short segment of DNA that determines a specific trait for an organism
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g e n e
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An asexual process used by some animals for reproduction
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r e g e n e r a t i o n
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Having to do with traits passed down through genes
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g e n e t i c
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A factor in the environment that causes a mutation
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m u t a g e n
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All the people born and living at about the same time
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g e n e r a t i o n
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The fact or condition of being a male or a female human being
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g e n d e r
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a rod-shaped structure of shorter, thicker coils of DNA
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Chrosomes
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the process through which traits are passed from parents to offspring
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Heredity
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information is stored within the cell nucleus in this molecule; it is also called
deoxyribonucleic acid |
DNA
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the basic unit of DNA
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nucleotide
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an organism that has two different genes for the same trait
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hybrid
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occurs when a female gamete joins with a male gamete to form a new
organism |
sexual reproduction
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