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19 Cards in this Set
- Front
- Back
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A monohybrid cross is
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a breeding experiment in which the parental varieties differ in only one character
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T/F An allele that is fully expressed is referred to as recessive
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F
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All offspring of a cross between a black-eyed mendelien and an orange eyed mendelien have black eyes. This means that the allele for the black eyes is ___ the allele for orange eyes.
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dominant to
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If A is dominant to a and B is dominant to b, what is the expected phenotypic ratio of a cross AaBb xAaBb?
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9:3:3:1
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A testcross is
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a matig between an individual of unknown genotype and an individual homozygous recessive for the trait of interest
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All the offspring of a cross between red-flowered plant and a whit flowered plant have pink flowers. This means that the allele for red flowers is ____ to the allele for white flowers.
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incompletely dominant
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Which of the fallowing terms refers to a situation where a single phenotypic character is determined by the additive effects of two or more genes?
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polygenic inheritance
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The sex chromosome complement of a normal human male is
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XY
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A color blind women marries a man who is not color blind. All of their sons, but none of their daughters, are color blind. Explain these results?
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The gene for color vision is linked to the X Chromosome
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T/F sickle cell disease causes white blood cells to be sickle-shaped
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F
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Equations for photosynthesis
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6CO2+6H2O+sunlight --> C6H12O6 +6O2
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CO2 eneters and O2 escapes the leaf via
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stomata
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Chloroplasts contain disklike membranous sacs arranged in stacks called
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grana
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The oxygen release into the air as a product of photosynthesis come from
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water
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The light reactions occur in the ___, while the calvin cycle occurs in the _____.
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Thylakoid membrane
stroma |
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What is produced during the light reactions of photosynthesis/
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ATP
NADPH O2 |
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Carbon fixation
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occurs when carbon and oxygen from CO2 are incorporated into and organic molecule
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Why are most plants green?
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Chlorophyll a reflects green light
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The calvin cycle constructs ____ an energy-rich molecule that a plant cell can then use to make glucose or other organic molecules
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G3P
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