Term
| which of the following is an example of x-chromosome inactivation |
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Definition
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Term
| homologous chromosomes separate during what phase of meiosis |
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Definition
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Term
| in humans, the 22 pairs of chromosomes that don't include the sex chromosomes are called |
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Term
| the process by which the cytoplasm of a eurkaryotic cell divides to produce two cells is called |
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Definition
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Term
| which of the following is a difference between mitosis and meiosis |
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Definition
| in mitosis two daughter cells are produced, whereas in meiosis four daughter cells are produced |
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Term
| which of the following is a feature of plant cell division that distinguishes it from animal cell division |
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Definition
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Term
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Definition
| a mating between an individual of unknown genotype and an individual homozygous recessive for the trait of interest |
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Term
| which of the following words is represented by word descriptions like black and tall |
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Definition
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Term
| the phenotypic ration of a monohybrid cross between two heterozygotes is |
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Term
| which of the following crosses will yield four phenotypes in a ratio of 9:3:3:1 |
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Definition
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Term
| which of the following would be considered a true dihybrid genotype |
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Definition
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Term
| most prokaryotic organisms reproduce mainly by the process of |
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Definition
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Term
| in peas, yellow is dominant over green in seed color. with which of the following is it best to cross a yellow-seeded pea plant to determine whether it is homozygous dominant or heterozygous |
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Definition
| homozygous green-seeded plant |
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Term
| breeding a yellow dog with a brown dog produced puppies with both yellow and brown hairs intermixed. this is an example of |
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Definition
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Term
| genes that tend to be inherited together are said to be: |
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Definition
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Term
| the sex of a human is determined by: |
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Definition
| the presence of a Y chromosome |
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Term
| two martians fall in love and marry. one martian is homozygous for red eyes and the other is heterozygous. the recessive eye color is purple. what is the probability that they will have a child with purple eyes |
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Definition
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Term
| when certain medium height hybrid plants were crossed, they poduced offspring that were dwarf, medium, and tall in a ratio of 1:2:1. this is an example of |
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Definition
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Term
| why is color-blindness more common in males than in females |
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Definition
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Term
| ______refers to multiple independent pairs of genes having similar and additive effects on the same characteristic |
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Definition
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Term
| _____ are all of the body's cells with the exception of the sex cells |
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Definition
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Term
| a bacterial chromosome consists of |
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Definition
| a circular DNA molecule many times larger than the cell |
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Term
| a brown-eyed couple already has a child with blue eyes. what is the probability that their next child will have blue eyes, assuming that the brown eye allele is dominant and the blue eye allele is recessive |
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Definition
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Term
| a cell is in metaphase if |
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Definition
| the chromosomes are aligned at the midplane of the cell |
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Term
| a particular gene that controls seed coat color in peas also determines the susceptibility of these peas to a particular disease. this situation is referred to as: |
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Definition
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Term
| a pear plant with the genotype Aa can produce gametes containing |
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Definition
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Term
| an animal with a diploid number of 36 chromosomes will have___chromosomes in its gametes and___chromosomes in its somatic cells |
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Definition
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Term
| chromosomes are duplicated during____of the cell cycle |
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Definition
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Term
| during prophase I, each chiasma represents: |
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Definition
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Term
| during prophase, ______is(are) compacted into visible chromosomes |
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Definition
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Term
| during which phase does crossing-over occur |
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Definition
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Term
| cells become haploid during which division of meiosis |
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Definition
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Term
| if a cell is dividing by binary fission then you know that |
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Definition
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Term
| in peas, Mendel found that tall plants and yellow peas are dominant. the phenotype for a pea plant with a genotype TTyy would be |
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Definition
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Term
| in peas, Mendel found that tall plants and yellow peas are dominant. the phenotype for a pea plant with the genotype TtYy would be: |
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Definition
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Term
| Mendel's principle of segregation states that: |
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Definition
| alleles separate from each other before forming gametes |
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Term
| most human somatic cells are |
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Definition
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Term
| the M phase of the cell cycle involves two main processes: |
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Definition
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Term
| the correct number of chomosomes is maintained during sexual reproduction by: |
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Definition
| meiosis, which reduces the chromosome number by half |
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Term
| the height of pea plants from a cross between parent plants heterozygous for height, in which tall is dominant, would be |
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Definition
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Term
| they physical location of a particular gene on a chromosome is called |
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Definition
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Term
| the separation of alleles of a gene take place during |
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Definition
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Term
| crossing over occurs during what phase |
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Definition
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Term
| the term "dominant" means |
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Definition
| one allele can mask the expression of another in a hybrid |
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Term
| using standard conventions for naming alleles, which of the following pairs is correct |
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Definition
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Term
| which of the following events does not occur during meiosis I |
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Definition
| separation of sister chromatids |
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Term
| DNA is replicated during what part of the cell cycle |
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Definition
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Term
| during which phase of mitosis do the chromosomes line up on a plane located equidistant from the two spindle poles |
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Definition
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Term
| during which state of meiosis do the tetrads form (homologous chromosomes pair up) |
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Definition
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Term
| eukaryotic cells spend most of their cell cycle in which phase |
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Definition
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