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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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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 sex chromosome(s) are present in a female oocyte?
one Y chromosome
an XX chromosome pair
one X chromosome
an XY chromosome pair
2
What describes the physical appearances of an organism?
phenotypes
stem cells
genotypes
alleles
3
What are pedigrees?
a table or chart used to record a line of ancestors
items used by scientists to determine a gene's sequence
mutated alleles responsible for genetic disorders
a brand of dog food
4
What kinds of traits would be hidden by another if the other is present?
phenotypic traits
dominant traits
recessive traits
homozygous traits
5
BONUS - Does a red and white speckled flower exhibit incomplete dominance or codominance?
codominance
homozygous dominance
heterozygous recessiveness
incomplete dominance
6
BONUS - Analyze the punnett square. What is/are the dominant genotype(s)?
Y
yellow and round
green
R and Y
7
BONUS - Analyze the punnett square. What phenotypes are more likely to be expressed in F
2
?
RrYY, RRYy or RrYy
rryy
green, wrinkled
yellow, round
8
What are different forms of a gene are known as?
alleles
genotypes
phenotypes
hybrids
9
What sex
deciding
chromosome(s) are present in a male spermatozoon?
an XY chromosome pair
an X or a Y chromosome
a Y chromosome
an X chromosome
10
What is an organism with two types of the same allele called?
homozygous
diploid
homologous
heterozygous
11
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
12
BONUS - What is this punnett square showing?
The Law of Independent Assortment
a dihybrid cross
sex-linked traits
multiple alleles
13
The major difference between different cells in the same organism is that they have unlike DNA.
TRUE
FALSE
14
How many chromosomes do somatic cells have?
138
92
23
46
15
BONUS - Analyze the punnett square. What allele(s) is/are dominant?
round
green
wrinkled
yellow
16
What are genes composed of?
RNA
DNA
stem cells
nuclei
17
What is the phenotypic ratio of two heterozygous plants' four offspring? (p - white/P - purple)
2 purple, 2 white
4 purple, 0 white
PP, Pp, Pp, pp
3 purple, 1 white
18
BONUS - Analyze the punnett square. Why do the gametes only have two alleles instead of four?
The parents have trisomy-21.
The gametes are haploid.
The gametes are diploid.
They are somatic.
19
BONUS - Where does transcription occur in eukaryotes?
the cytoplasm
the nucleolus
the nucleus
in the ribosomes
20
BONUS - Where does translation occur in a eukaryote?
the nucleolus
the cytoplasm
in the ribosomes
the nucleus
