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Genetics Test Review Flashcards | StudBud
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Genetics Test Review
Genetics Test Review
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A review of #genetics for middle schoolers
Flashcards
42 cards
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Practice quiz
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Questions
42
Answers
1
Why is a pedigree useful?
used to determine whether a baby will be male or female
it's a brand of dog food
often used to determine the mode of inheritance of a disease
help people learn about their family tree
2
An example of a trait is...
what you like to eat for lunch
what type of pencil you like to write with
hair color
whether you did your homework or not
3
T/F: Codominance Both alleles present in phenotype & genotype represented by lowercase letters
False
True
4
T/F: An important property of DNA is that it can
replicate
, or die.
True
False
5
Recessive traits...
can be masked by the dominant form of a trait
observable trait of an organism that masks the dominant form
6
T/F: In
sexual reproduction
, sperm fuse with egg and fertilize.
False
True
7
AB is...
homozygous dominant
not a word
homozygous recessive
codominance
8
Which of the following is an example of artificial selection?
breeding 2 types of cow to get maximum milk production
allowing bees to cross-pollinate
allowing a flower to self-pollinate
buying new seeds at Wal Mart
9
bb is...
homozygous recessive
heterozygous
not a word
homozygous dominant
10
T/F: A
gene
is the basic physical and functional unit of heredity.
False
True
11
Where does meiosis occur?
brain cells
bone cells
muscle cell
ovary cell
12
Which freshwater organism reproduces through the process of budding?
frogs
fish
hydra
algae
13
What are traits?
characteristics that are inherited
they are not characteristics at all
characteristics that you learn
characteristics that skip a generation
14
What is DNA made of?
1 base pairs and alternating sugar/phosphate
4 base pairs and alternating sugar/phosphate
3 base pairs and alternating sugar/phosphate
2 base pairs and alternating sugar/phosphate
15
T/F:
Heredity
is the study of genes, genetic variation, and heredity in living organisms.
True
False
16
Why is it important that each strand of DNA in the double helix needs to serve as a pattern?
so that no mistakes are made when DNA copies
so that it can grow back
so that it cannot grow back
so that mistakes are made when DNA copies
17
Actual passing on of physical/mental characteristics genetically from 1 generation 2 another?
biology
physiology
heredity
genetics
18
What can cause offspring to have a trait different than parents?
artificial selection of a trait
mutation in parent sex cell
mutation in parent body cell
natural selection of a trait
19
T/F:
Sexual reproduction:
reproductionbyoffspringcome fromsingle organism&inheritgenesofparent.
True
False
20
How are cultivated plants a benefit to humans?
they are cheaper than regular plants
they promote survival in different conditions
they reproduce faster
they do not promote survival in different conditions
21
What is selective breeding?
asking organisms what they would like to do
selectively develop genotypic traits & breeding
selectively develop particular phenotypic traits & breeding
allowing processes to happen naturally
22
Which factors influence the length and quality of human life?
whether you study or not
whether you find a job or not
sanitation, diet, medical care, genes, environment & health
whether you can pass a driving test or not
23
What does the 23rd set of chromosomes represent?
intelligence
eye color
gender
height
24
Tt is...
homozygous dominant
homozygous recessive
heterozygous
not a word
25
What is cytokinesis?
when the cell actually splits into three
when the cell actually comes together
when the cell actually splits into two
when the cell actually splits into five
26
T/F: Changes in
genetic
conditions can affect survival of individual organisms & species.
False
True
27
T/F: Alleles R different forms of a gene which make variations of genetically inherited trait
True
False
28
GG is...
heterozygous
homozygous recessive
not a word
homozygous dominant
29
Fertilization is...
sexual reproduction where there is a fusion of body cells
sexual reproduction where there is a fusion of organs
sexual reproduction where there is a fusion of gametes
sexual reproduction where there is a fusion of organelles
30
Dominant traits...
can be masked by the recessive form of a trait
observable trait of an organism & masks the recessive gene
31
T/F: Offspring that are a result of asexual reproduction share DNA with their parent.
True
False
32
Which most accurately describes behavior?
All behavior is affected by neither experience/inheritance.
All behavior is affected only by inheritance.
All behavior is affected by both experience/inheritance.
All behavior is affected only by experience.
33
What is a chromosome?
organ structures with genes & copied/passed from generations
cell structures with genes & copied/passed from generations
organelles with genes & copied/passed from generations
system structures with genes & copied/passed from generation
34
Gene therapy...
is when scientists send you to a therapist
is when scientists remove all your genes & you get new ones
is when scientists try to provide healthy copies of a gene
is when scientists clone genes
35
T/F: Human cells have a total of
23
chromosomes in the nucleus of all
body
cells.
False
True
36
What's the difference between the haploid and diploid number?
Diploid is half (23) and haploid is double (46)
Haploid is half (23) and diploid is double (46)
37
What are other names for sperm and egg?
Body or somatic cells
Sex cells or gametes
38
Formation of a haploid cell resulting from sexual reproduction...
elimination of genes
deletion of genetic material that has mutated
production of offspring with identical chromosomes as parent
production of zygote with complete set of chromosomes
39
Can environment influence your abilities and talents?
No
Yes
40
Genotypes are...
when both alleles are expressed in the phenotype
gene combination an organism contains
The way an organism looks and behaves
heterozygous genotype
41
T/F:
Mutations
can occur when cells R aging/been exposed to certain chemicals or radiation.
False
True
42
type of asexual reproduction when nucleus undergoes
cell division
& 2
daughter
cells are formed
meiosis
mitosis
telophase
cytokinesis
