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35 Cards in this Set
- Front
- Back
a substance lacking in albino plants
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chlorophyll
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thornless berries are a result of this
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mutation
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an albino plant dies as soon as these are gone
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nutrients
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phosphate is attached to this in the DNA molecule
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sugar
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deoxy means to remove this
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oxygen
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the four bases in the DNA molecule of the cell
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alphabet
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the science of heredity proves this principle
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the science of heredity proves this principle
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DNA forms these
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giant molecules
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DNA is the special life substance of these
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genes
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albino people and animals have red eyes
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blood vessels
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a word meaning the total surroundings of an organism
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environment
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offspring from a cross between two organisms differing in one or more genes
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hybrid
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an organism having the same genes for a certain trait
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purebred
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The transfer of pollen from the anther of one flower to the stigma of another is cross-pollination.
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true
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Pollen sticks to the stigma because it has little hooks.
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false
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The plant ovary is inside the plant ovule.
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false
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Meiosis occurs in male-female reproduction.
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true
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In meiosis, new reproductive cells have twice as many chromosomes as regular cells.
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false
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An immature, developing plant or animal is called an embryo.
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true
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Blood types are inherited, but the blood does not pass on the traits.
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true
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Many undesirable traits in humans are recessive.
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true
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Gregor Mendel is sometimes called the father of chemistry.
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false
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A female reproductive cell is called an
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egg
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Intelligence is believed to be controlled by
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multiple genes
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Whenever new cells are made with the same number of chromosomes, the process of cell division is called
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mitosis
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When neither gene shows dominance and a blended condition is produced, it is called
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incomplete dominance
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A gene which does not produce its effect when an opposite dominant gene is present is called a(n) ____ gene
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recessive
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The DNA molecule is made up of numerous genes.
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true
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Regardless of the physical traits which are determined by genes, an organism must receive the proper nutrients to develop normally.
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true
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A chromosome can carry
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thousands of genes
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Which statement describes chromosomes?
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coiled threads of DNA
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Mutations can produce a beneficial change in an organism after many generations.
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true
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The facts of science demonstrate:
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that DNA can reproduce the traits of an organism without changing the basic kind of organism.
that mutation occurs in nature, but it is extremely rare. |
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An albino plant can still produce food.
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false
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Some mutations are beneficial, but other mutations may be harmful or cause death.
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true
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