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Duplicate of Genetics Flashcards | StudBud
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Duplicate of Genetics
Duplicate of Genetics
20 terms
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StudBud Administration
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A #biology Quiz! to explain the basics of #genetics.
Flashcards
20 cards
F
Practice quiz
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Host live
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Questions
20
Answers
1
What is an organism with two types of the same allele called?
homozygous
heterozygous
homologous
diploid
2
BONUS - Analyze the punnett square. Why do the gametes only have two alleles instead of four?
The gametes are haploid.
The gametes are diploid.
They are somatic.
The parents have trisomy-21.
3
What sex
deciding
chromosome(s) are present in a male spermatozoon?
an XY chromosome pair
a Y chromosome
an X chromosome
an X or a Y chromosome
4
BONUS - Analyze the punnett square. What phenotypes are more likely to be expressed in F
2
?
rryy
yellow, round
RrYY, RRYy or RrYy
green, wrinkled
5
BONUS - Where does translation occur in a eukaryote?
in the ribosomes
the nucleus
the cytoplasm
the nucleolus
6
BONUS - Analyze the punnett square. What is/are the dominant genotype(s)?
green
yellow and round
R and Y
Y
7
BONUS - Where does transcription occur in eukaryotes?
the nucleus
the cytoplasm
the nucleolus
in the ribosomes
8
The major difference between different cells in the same organism is that they have unlike DNA.
FALSE
TRUE
9
BONUS - If this is the F
1
, what would the parent's alleles have to be? (r - white/R - red)
RR and RR
RR and rr
Rr and RR
Rr and Rr
10
What are pedigrees?
items used by scientists to determine a gene's sequence
mutated alleles responsible for genetic disorders
a table or chart used to record a line of ancestors
a brand of dog food
11
What are different forms of a gene are known as?
phenotypes
hybrids
alleles
genotypes
12
How many chromosomes do somatic cells have?
23
138
92
46
13
Which below represents a polygenic trait?
All of the above
Hair color
Height
Skin color
14
BONUS - Does a red and white speckled flower exhibit incomplete dominance or codominance?
incomplete dominance
codominance
homozygous dominance
heterozygous recessiveness
15
A dihybrid cross for two heterozygous parents (SsYy x SsYy) will result in which ratio?
10:2
9:3:3:1
9:6:3
12:6:2:1
16
BONUS - What is this punnett square showing?
a dihybrid cross
sex-linked traits
multiple alleles
The Law of Independent Assortment
17
What kinds of traits would be hidden by another if the other is present?
recessive traits
phenotypic traits
homozygous traits
dominant traits
18
What sex chromosome(s) are present in a female oocyte?
an XX chromosome pair
one X chromosome
an XY chromosome pair
one Y chromosome
19
What describes the physical appearances of an organism?
genotypes
alleles
phenotypes
stem cells
20
BONUS - Analyze the punnett square. What allele(s) is/are dominant?
wrinkled
green
round
yellow
