Basics Of Genetics Question Preview (ID: 18662)
DNA, Genes, And Traits.
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The physical trait of an organism.
a) phenotype
b) genotype
c) alleles
d) cells
The genes an organism has for a trait.
a) phenotype
b) genotype
c) offspring
d) DNA
Chromosomes are tightly wound coils of _________.
a) nuclei
b) proteins
c) cells
d) DNA
Genes are located on _______.
a) DNA
b) Cell membranes
c) Chromosomes
d) none of the above
Each gene codes for one _________.
a) trait
b) protein
c) cell
d) phenotype
____________ are different forms of genes.
a) alleles
b) genomes
c) nuclei
d) nucleic acids
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
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
Where are the chromosomes of an organism found.
a) in the cytoplasm of the cell
b) in the nucleus of the cell
c) on the outside of the cell
d) only in blood cells
The gender of humans is determined by the sex chromosomes. What is the genotype for male and female humans?
a) XX, XX
b) Xy, XV
c) Xy, XX
d) XX, Xy
Which organizes the items smallest to largest?
a) chromosomes, genes, genome
b) bases, genes, chromosomes, genome
c) genome, genes, bases, chromosomes
d) elephant, mouse, bacteria
Traits that an organism gets from its genes.
a) Acquired
b) inherited
c) obtained
d) given
Characteristics of an organism.
a) genotype
b) genome
c) polygenetics
d) traits
All of the genetic material that an organism has is called its __________.
a) genome
b) blueprint
c) chromosome
d) gene
Which trait is most likely an inherited trait?
a) scars
b) accent
c) ability to read
d) bone structure
Which trait is most likely acquired?
a) shape of a trees leaf
b) color of a butterfly
c) which hand a person writes with
d) blood type of a person
The shape of the DNA molecule
a) long and flat
b) circular
c) double helix
d) rope shaped
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
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