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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
alleles
B
phenotype
C
genotype
D
cells
2) The genes an organism has for a trait.
A
phenotype
B
DNA
C
offspring
D
genotype
3) Chromosomes are tightly wound coils of _________.
A
cells
B
nuclei
C
DNA
D
proteins
4) Genes are located on _______.
A
none of the above
B
Chromosomes
C
DNA
D
Cell membranes
5) Each gene codes for one _________.
A
cell
B
phenotype
C
protein
D
trait
6) ____________ are different forms of genes.
A
genomes
B
nucleic acids
C
nuclei
D
alleles
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
in the nucleus of the cell
B
on the outside of the cell
C
only in blood cells
D
in the cytoplasm 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
XX, XX
C
Xy, XV
D
XX, Xy
11) Which organizes the items smallest to largest?
A
bases, genes, chromosomes, genome
B
chromosomes, genes, genome
C
genome, genes, bases, chromosomes
D
elephant, mouse, bacteria
12) Traits that an organism gets from its genes.
A
Acquired
B
inherited
C
obtained
D
given
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
gene
B
genome
C
chromosome
D
blueprint
15) Which trait is most likely an inherited trait?
A
ability to read
B
bone structure
C
accent
D
scars
16) Which trait is most likely acquired?
A
blood type of a person
B
color of a butterfly
C
shape of a trees leaf
D
which hand a person writes with
17) The shape of the DNA molecule
A
circular
B
long and flat
C
double helix
D
rope shaped
18) The bases of DNA that work to spell the genetic code.
A
A,B,C,D
B
A,T,F,F
C
A,Q,R,T
D
A,T,C,G
*select an answer for all questions
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