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Genetics Review Flashcards | StudBud
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Genetics Review
Genetics Review
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Punnett Squares, Mendel, dominant, recessive, genes, genetics
Flashcards
33 cards
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Answers
1
The scientific study of heredity (how genes are passed down)
Genetics
Life Science
Biology
Schmenetics
2
The different forms of genes
DNA
Genotype
Traits
Alleles
3
Allele whose trait shows up in an organism when its present
Dominant Allele
DOMINANT!
Recessive Allele
recessive
4
Gregor Mendel is known for his work with
rabbits
pea plants
crazy biology students
dinosaurs
5
A hetero red plant is crossed with a homo white plant. How many will be red?
50%
75%
100%
0%
6
A trait a person carries that is LESS common than others
RED HAIR!
Dominant Trait
I like traits!
Recessive Trait
7
What percentage of human sperm cells carry an X chromosome?
100%
50%
75%
25%
8
What allele cross will produce the greatest number of geno and pheno variations?
Ss x Ss
Ss x SS
SS x SS
ss x SS
9
What combination of chromosomes represents a male?
YY
XY
XX
10
An organism's genetic makeup (which makes up a trait).
Typical...
Typo
Phenotype
Genotype
11
An organism's physical appearance or visible traits.
Giotype
Crazy type!
Genotype
Phenotype
12
Human females produce egg cells that have
2 Y chromosomes
1 Y chromosome
2 X chromosomes
1 X chromosome
13
A sequence of DNA that is passed from parent to offspring.
Jeans
Gene
A trait
Pants
14
A process where egg cell & sperm cell join & form a new cell
Fertilization
Photosynthesis
Genetics
Heredity
15
In humans there are ____ chromosomes given from EACH parent.
92
46
12
23
16
The use of a Punnett Square is to show a/an ________________ of offspring.
probability
planned
characteristic
actual outcome
17
Homozygous is...
Having two different alleles for a particular gene
Having ice cream on a hot day
Having three identical alleles for a particular gene
Having two identical alleles for a particular gene
18
What is the correct pheno sequence if wide (W) is dominant to thin (w)? Genotype: WW, ww, Ww
wide, thin, thin
wide, wide, thin
thin, wide, wide
wide, thin, wide
19
A trait a person carries that is MORE common than others.
Domecessive
Recessive Trait
DOMINANT!
Dominant Trait
20
A homo dominant red flower is crossed with a recessive white flower. How man y will be white?
0%
50%
75%
25%
21
Allele that is hidden whenever the dominant allele is there
Phenotype
Recessive Allele
Mr. Whiteaker?
Dominant Allele
22
What is the approximate probablity that a human offspring will be female?
50%
100%
25%
75%
23
A seed can be round or wrinkled. Seed shape is
a factor
an allele
a trait
a gene
24
What combination of chromosomes represents a female?
XY
XX
YY
25
Probability is...
2 + 2 = 4
Percentage of offspring that have a trait
Number that shows how likely it is that an event will occur
A mathematical term for order of operations
26
Colorblindness is a ________________ trait carried on the _____ chromosome.
Dominate, Y
Dominate, X
Recessive, X
Recessive, Y
27
The letters B (brown) and b (blue) are _________ for eye color.
genes
traits
alleles
factors
28
DNA
Genetic material that carries info about an organism
Do Not Attempt!
Deoxyribonucleic Acid
Dustin is Nice and Awesome
29
Specific characteristic an organism passes to its offspring
An allele
Gene
Trait
Treat!
30
What percentage of human sperm cells carry an X chromosome?
100%
25%
50%
75%
31
Heterozygous is...
Having two different alleles for a particular gene
Having one million different alleles for a particular trait
Having two identical alleles for a particular gene
Having three identical alleles for a particular gene
32
Of 80 offspring, how many dogs would be black (B) if you cross a homo dom with a homo rec?
20 dogs
30 dogs
80 dogs
40 dogs
33
A Punnett Square is...
A chart made by a man to confuse seventh graders
Traits that are most common
Chart that shows possible genotypes & phenotypes crosses
Parents traits that are crossed
