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7th Grade, DNA Part 2
Test Description: Genetics
Instructions: Answer all questions to get your test result.
1) Which human trait is controlled by a single gene with multiple alleles?
A
skin color
B
blood type
C
dimples
D
height
2) Colorblindness is a sex-linked trait. That means that it will appear...
A
equally in males and females
B
only in animals
C
more in females
D
more in males
3) An organism that has the same genes as the organism that produced it is called a
A
hybrid
B
pedigree
C
clone
D
genome
4) Inbreeding and hybridization are two different types o f
A
selective breeding
B
cloning
C
genetic engineering
D
gene therapy
5) Small rings of DNA called ___ are found in some bacterial cells.
A
plasmas
B
helixes
C
plasmids
D
ellipses
6) By using a stem cutting from an African violet, it is easy to produce a new plant, which is a
A
sibling
B
mutation
C
hybrid
D
clone
7) A female's sex chromosomes are
A
XY
B
pink
C
XX
D
YY
8) The only thing determined by the genes carried on a sex chromosome is a person's sex.
A
true
B
false
9) The body cells of humans contain ___ pairs of chromosomes
A
46
B
24
C
23
D
12
10) In the case of sex-linked traits, ___ are carriers.
A
both females and males
B
babies only
C
males
D
females
11) Which sex chromosome carries less information?
A
Y
B
they don't carry any information
C
X
D
they both have the same amount of information
12) Blood type A is
A
recessive while B is dominant
B
codominant with B
C
recessive with B while O is dominant
D
dominant while B is recessive
13) A trait like dimples, where you have them or you don't, is an example of
A
one trait, many genes
B
none of the above
C
single gene, multiple alleles
D
single gene, two alleles
14) We can insert DNA into the plasmid of a bacteria to produce
A
insulin
B
hemoglobin
C
aspirin
D
iron
15) Breeding two dogs that are good retrievers in the hopes that their babies will also be good retrievers is an example of
A
cloning
B
genetic engineering
C
selective breeding
D
gene therapy
16) Crossing two genetically different individuals to get the best traits from both parents is called
A
gene therapy
B
cloning
C
inbreeding
D
hybridization
17) Cloning is an accepted practice in the LCMS.
A
true
B
false
18) Which is NOT a concern about genetic engineering?
A
genetically engineered organisms can harm the environment
B
genetic engineering would make smarter people
C
genetic engineering can cause problems down the road
D
genetic engineering can cause health problems in humans
19) Taking a cutting from an African violet is an example of
A
hybridization
B
selective breeding
C
cloning
D
inbreeding
20) Inserting copies of a gene directly into a person's cells is called
A
gene therapy
B
dna extraction
C
selective breeding
D
hybridization
*select an answer for all questions
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