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Mendelian Genetics Test

Enter the letter for the matching Answer
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1.
why is there an equal number of F1 gametes in a dihybrid cross?
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2.
what is the ratio when crossing a homozygous recessive with a heterozygote?
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3.
in a dihybrid cross, what is the ratio for the F2 phenotype?
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4.
what term means the combination of alleles in an individual?
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5.
in a monohybrid cross, what is the ratio for the F2 phenotype?
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6.
what term means to carry both copies of the same allele, i.e. both dominant or recessive?
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7.
why are mutations in the same genes non-complimentary?
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8.
what term means biological factors that induce particular traits?
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9.
what term means a heterozygous individual?
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10.
in a dihybrid cross, how many possible combinations occur in the F2 progeny?
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11.
what term means alternate forms of a given gene, inherited from different parents?
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12.
what term means the second generation produced in a series of crosses?
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13.
what term means a cross where two loci are tracked, e.g. AaBb x AaBb?
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14.
in a monohybrid cross, what is the ratio for the F2 genotype?
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15.
what term means any gene not located on X, or characteristic not associated with X?
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16.
in which gene abbreviation scheme is the recessive shown as a lower case, italicized abbreviation (usually three letters), and the dominant with the same letters but with a + superscript?
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17.
what do the numbers 9:3:3:1 represent in the dihybrid F2 phenotype?
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18.
what term means the first generation produced in a series of crosses?
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19.
what term means sex determining chromosome, X or Y?
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20.
why are mutations in different genes complementary?
A.
1:1
B.
alleles
C.
scheme 2
D.
genes
E.
sex chromosomes
F.
genotype
G.
9:3:3:1
H.
independent assortment
I.
16
J.
because the F1 are homozygous mutant
K.
heterozygote
L.
homozygous
M.
3:1
N.
filial two (F2)
O.
filial one (F1)
P.
9 are dominant for trait 1 and trait 2; 3 are dominant for trait 1 and recessive for trait 2; 3 are recessive for trait 1 and dominant for trait 2; 1 is recessive for traits 1 and 2
Q.
because the F1 are wild type heterozygotes
R.
1:2:1
S.
autosomal
T.
dibybrid cross
Type the Answer that corresponds to the displayed Question.
incorrect
21.
what term means a homozygous individual?
incorrect
22.
nheritance at one locus is dependent of another. is this true or false?
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23.
what term means an allele which only determines phenotype in the absence of a dominant allele?
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24.
what term means a cross where three loci are tracked, e.g. AaBbCc x AaBbCc?
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25.
what term means a gene located on the X chromosome?
incorrect
26.
what term means an entity that carries a mutation? It can be an allele, or an individual.
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27.
what term means a cross where one gene locus is tracked, e.g. Aa x Aa?
incorrect
28.
in a dihybrid cross, what is the ratio for the F2 genotype?
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29.
in which gene abbreviation scheme is the recessive shown in lower case italics, the dominant or wild type as a +?
incorrect
30.
what term means any chromosome except X or Y?

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