AP Bio MCQ for genetics/heredity test
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Meiosis begins with a normal (___) cell with a ___ number (2n) of chromosomes. | show 🗑
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| Under normal conditions, the cell's chromosome number will become ___ (n) towards the end of telophase in Meiosis 1 (the first half of meiosis) while on its way to form gametes. | show 🗑
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| show | Fertilization
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| show | 3
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| Don't forget about the other phases of the cell cycle, when the cell isn't dividing. Although chromosomes do get ___ during the S phase, the chromosome number doesn't change as a result of the S phase. | show 🗑
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| show | The next generation would get too many chromosomes
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| show | Anaphase 1
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| Don't forget the key events during meiosis which contribute to genetic variation including the ___ of homologous chromosomes during ___ | show 🗑
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| Many genetics studies have shown that two different traits on the same chromosome will have an ___ rate of crossing over if they are further apart | show 🗑
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| show | random alignment, independent, variation
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| show | lethal
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| If two heterozygous individuals have offspring, what are the chances of them having a heterozygous offspring? (also uses punnett square) | show 🗑
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| In a pedigree showing a sex-linked recessive trait, you'll see more ___ affected. If a trait is not sex-linked, we say that it is ___ | show 🗑
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| In some cases, two different types of genes, also known as ___, can function better at two different temperatures. | show 🗑
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| show | This individual could be heterozygous for a codominant trait
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| show | X^BX^bY, male (The Y is still active), normal vision, carrier of color blindness gene
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| show | nondisjunction, spermatogenesis, oogenesis
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| show | one or both parents are affected, many children are affected in both genders, all siblings linked together, mom- homozygous, dad- heterozygous
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| show | possible neither parent is affected but child is affected, few children are affected in both genders, siblings linked, mom-heterozygous, dad- heterozygous, affected child- homozygous
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| show | trait primarily expressed in males, can tend to skip generations from grandfather to grandson, male- X^TY/X^tY, mom- X^TX^t but can also have unknown genotypes
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Created by:
josie_dr
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