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Basics Of Genetics
Test Description: DNA, Genes, and Traits
Instructions: Answer all questions to get your test result.
1) The physical trait of an organism.
A
genotype
B
cells
C
alleles
D
phenotype
2) The genes an organism has for a trait.
A
DNA
B
phenotype
C
genotype
D
offspring
3) Chromosomes are tightly wound coils of _________.
A
cells
B
DNA
C
nuclei
D
proteins
4) Genes are located on _______.
A
DNA
B
none of the above
C
Chromosomes
D
Cell membranes
5) Each gene codes for one _________.
A
phenotype
B
cell
C
protein
D
trait
6) ____________ are different forms of genes.
A
genomes
B
nuclei
C
alleles
D
nucleic acids
7) If the allele for red is dominant over white, what phenotype would a red flower have?
A
CC
B
Cc
C
cc
D
CC or Cc
8) If tongue rolling is dominant. If a person cannot roll his tongue what must his genotype be?
A
tt
B
TT
C
Tt
D
tT
9) Where are the chromosomes of an organism found.
A
on the outside of the cell
B
in the cytoplasm of the cell
C
only in blood cells
D
in the nucleus of the cell
10) The gender of humans is determined by the sex chromosomes. What is the genotype for male and female humans?
A
Xy, XX
B
Xy, XV
C
XX, Xy
D
XX, XX
11) Which organizes the items smallest to largest?
A
genome, genes, bases, chromosomes
B
elephant, mouse, bacteria
C
chromosomes, genes, genome
D
bases, genes, chromosomes, genome
12) Traits that an organism gets from its genes.
A
Acquired
B
given
C
obtained
D
inherited
13) Characteristics of an organism.
A
polygenetics
B
genotype
C
traits
D
genome
14) All of the genetic material that an organism has is called its __________.
A
chromosome
B
gene
C
blueprint
D
genome
15) Which trait is most likely an inherited trait?
A
accent
B
ability to read
C
bone structure
D
scars
16) Which trait is most likely acquired?
A
color of a butterfly
B
blood type of a person
C
which hand a person writes with
D
shape of a trees leaf
17) The shape of the DNA molecule
A
rope shaped
B
double helix
C
circular
D
long and flat
18) The bases of DNA that work to spell the genetic code.
A
A,B,C,D
B
A,Q,R,T
C
A,T,F,F
D
A,T,C,G
*select an answer for all questions
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