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Holt Mod Biology: Fundamentals of Genetics Flashcards | StudBud
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Holt Mod Biology: Fundamentals of Genetics
Holt Mod Biology: Fundamentals of Genetics
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1
Who is considered the father of modern genetics?
Louis Pasteur
Charles Darwin
Jean Baptiste Lamark
Gregor Mendel
2
When the alleles are identical, they are said to be ....
heterozygous
homozygous
dominant
recessive
3
Being a gardener would have been insufficient for Mendel's work if he had not gone back to study ...
religion
botany
statistics
science & religion
4
In incomplete dominance if one were to cross a black bunny with a white bunny, one'd get ....
mostly white bunnies
mostly black bunnies
black & white bunnies
grey bunnies
5
Mendel reasoned that 'factors' for dominant & recessive traits can be separated & passed on independent of all others.
meiosis I
mitosis
law of independent assortment
Law of segregation
6
A phenotypic ratio of 9:3:3:1 occurs when observing a _____cross.
heterozygote dihybrid
heterozygote monohybrid
incomplete dominance of 2 heterozygotes
homozygous recessive x heterozygote trihybrid
7
The law of independent assortment allows a plant to exhibit .
a mixture of dominant & recessive traits
only recessive traits
only dominant traits
3/4 dominant; 1/4 recessive
8
In order for Mendel to observe the law of independent assortment, he had to experiment with _______.
F1 x F2 crosses
F1 self-pollination
Dihybrid crosses
F2 self-polliination
9
If one were to see a 3:1 phenotypic ratio in F
1
, the P generations were ....
2 heterozygotes
homozygous dom. x heterozygotes
homozygous dominant x homozygous recessive
homozygous recessive x heterozygotes
10
R=round, r= wrinkled; Y= yellow, y=green. RRYY x rryy. The F
1
phenotypes are ...
all yellow round
3 yellow round: 1 green wrinkled
all green wrinkled
half yellow round, half green wrinkled
11
When one crosses a homozygous recessive with an unknown dominant phenotype, this occurs.
25 % recessive phenotype
all dominant phenotype
testcross
3:1 phenotypic ratio
12
Mendel did his most famous experiments using
Pisum sativum
, the common ...
daisy
crocus
maize/ corn
garden pea
13
The notation of Gg, GG, or gg refers to the organism's ______.
phenotype
gene code
genotype
genetic loci
14
If there were 5474 round seed to every 1850 wrinkled seeds, the phenotypic ratio would be __.
3:1
4:1
1:3
4.5:1
15
If your grandparents are the P generation, then you are the ___ generation.
P
F1
F2
F3
16
Mendel's work was successful, in part, because all of the pea plant characteristics ...
complex characters
multiple alleles
soil conditions
only had two forms/traits.
17
What Mendel called "factors", we now know as "_____".
chromosomes
genes
traits
alleles
18
The likelihood a specific event could occur = ?
Probability
Percent error
Percent probability
Standard deviation
19
Bb means. .
homozygous dominant
heterozygous
heterozygous recessive
partial dominance
20
TT is
homozygous recessive
heterozygous recessive
heterozygous dominant
homozygous dominant
21
The true-breeding/purebred plants Mendel used were ____ for a given trait.
recessive
heterozygous
homozygous
dominant
22
Mendel determined the Law of __ when 1/2 the traits disappeared 1 year but showed back up the next year.
segregation
independent assortment
conservation of matter
entropy
23
When pollen is transferred from 1 flower to a different flower on the same plant, ___ occurs.
bi-pollination
self-pollination
partial-pollination
cross-pollination
24
A cross between parents looking at two sets of characteristics concurrently.
haploid cross
dihybrid cross
diploid cross
monohybrid cross