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37 Cards in this Set
- Front
- Back
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What happens at the conclusion of Meiosis I?
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Homologous chromosomes are separated.
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A cross between a garden pea with yellow pods and a garden pea with green pods produces an F1 generation in which all the peas have green pods. This is an example of:
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Complete dominance
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Which blood type is the least common in the population of the US?
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AB
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Sister chromatid begins to separate during what stage of mitosis?
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Anaphase
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What amount of time is required to complete meiosis in human females?
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Years
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During the G1 phase of the cell cycle, a decision is made on whether the cell will continue through the cycle or:
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enter into a non-dividing state (G0)
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What is the genotype for all possible gametes of an organism with a genotype of RRSstt?
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RSt, Rst
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Alleles are:
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different versions of the same gene
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The giant American land beaver has 16 pairs of chromosomes in the nucleus of its cells. How many chromosomes are present in a single sperm or egg cell?
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16
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The centromere is a region in which:
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chromatids are attached to one another
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Recombination or crossing over occurs during which phase of meiosis
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prophase I
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Which occurs in meiosis but not in mitosis?
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pairing of homologous chromosomes
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In humans, aneuploidy is tolerated (results in a live birth) when it occurs in:
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sex chromosomes and certain autosomes
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When Mendel conducted his experiments to study heredity, he started with what kind of parental strains?
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Homozygous
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In meiosis, the end products:
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are called gametes
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Before a cell can enter the mitosis, it must first:
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duplicate its chromosomes
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Which phenotypic ratio observed in the F2 generation could suggest a trait exhibits codominance in its method of inheritance?
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2:1:1
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The giant purple ameoba, a single-celled organism, contains 5 pairs of chromosomes in its nucleus. It undergoes mitosis. How many chromosomes does each of the daughter cells contain?
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10
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Cancer cells:
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ignore cell cycle checkpoints, resulting in uncontrolled cell division
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Growth and repair occur at the cellular level through a process called:
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Mitosis
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Bacterial cells divide and reproduce by a process called:
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binary fission
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Certain requirements need to be met at a ___________ to enable the cell to continue on to the next stage of the cell cycle.
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checkpoint
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The only example of monosomy (one copy of a chromosome) which occurs in humans is:
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XO, Turner's syndrome
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Humans have ____ pairs of chromosomes in their cells.
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23
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Equational division of chromosomes
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Both meiosis and mitosis
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Separation of homologous chromosomes
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Meiosis
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Separation of sister chromatids
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Both meiosis and mitosis
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Breakdown of the nuclear membrane
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Both meiosis and mitosis
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Condensation of chromosomes
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Both meiosis and mitosis
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Reductional division of chromosomes
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Meiosis
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Anaphase
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Meiosis
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Down's Syndrome
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Meiosis
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Cytokinesis
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Both meiosis and mitosis
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Prophase
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Mitosis
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Cancer
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Mitosis
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Spindle formation
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Both meiosis and mitosis
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What is one difference between meiosis in human females and meiosis in human males?
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Speed, women are a lot slower and are born with everything they'll need though they develop over years. Men however are constantly producing sperm because they develop very quickly.
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