Genetics Question Preview (ID: 58364)
Genetics.
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A red flower with the genotype( RR) is crossed with another red flower (Rr) -What will be the phenotype of the offspring?
a) white
b) pink
c) red
d) unknown
If SpongeBob and Gerdy are heterozygous for their blue skin, what is the probability of an offspring with green skin?
a) 25%
b) 50%
c) 75%
d) 100%
If recessive alleles for dimples(dd) are crossed with another set of recessive alleles for dimples (dd), what are the possible genotypes?
a) DD
b) dd
c) DD, Dd
d) DD, Dd, dd
_______________________ are physical or behavioral characteristics that are passed down to organisms genetically. (hair color, freckles, dimples, eye color, straight hair)
a) traits
b) genes
c) codominance
d) alleles
What is the process where DNA is copied
a) pedigree
b) traits
c) replication
d) thymine
The term used to describe the trait that overshadows and is expressed with a capital letter
a) homozygous
b) heterozygous
c) dominant
d) recessive
Shows all the possible combinations of alleles from the parents.
a) Punnett Square
b) pedigree
c) phenotype
d) genotype
What two names are used to describe alleles that are the same
a) homozygous, purebred
b) Traits and Recessive
c) Homozygous and Purebred
d) Traits and Replication
The term used to describe the letters that represent the different forms of a gene
a) pedigree
b) alleles
c) genotype
d) phenotype
The scientific study of heredity
a) genetics
b) traits
c) replication
d) hybrid
If a human is a tongue roller (TT) mates with a non tongue roller(tt) - What are the possible phenotypes of the offspring?
a) The offspring can roll their tongue and not roll their tongue
b) The offspring will be able to roll their tongue
c) The offspring will not be able to roll their tongue
d) None of the above
___________________________ involves choosing parents with particular characteristics to breed together and produce offspring with more desirable characteristics.
a) Designer Offspring
b) Selective Breeding
c) Chemical Breeding
d) Physical Breeding
When dominant and recessive traits are combined in the heterozygous state that results in the BLENDING of traits, (red and white flower produces a pink flower)
a) codominance
b) multiple alleles
c) incomplete dominance
d) pedigree
The term used to describe the physical appearance of the trait (ex. long nose)
a) genotype
b) phenotype
c) trait
d) Punnett Square
This contains your genes and is found in the nucleus of the cell
a) traits
b) DNA
c) genotype
d) replication
The term used to describe the physical appearance of the trait (ex. long nose)
a) genotype
b) phenotype
c) trait
d) Punnett Square
Adenine always pairs with____________________.
a) thymine
b) cytosine
c) adenine
d) adenine
Guanine always pairs with ___________________.
a) thymine
b) cytosine
c) adenine
d) guanine
The term used to describe the combination of alleles (PP, Pp,pp)
a) traits
b) multiple alleles
c) pedigree
d) genotype
What is the trait that hides in the background? It is represented by a lowercase letter. It can only be expressed in homozygous form.
a) dominant
b) recessive
c) incomplete dominance
d) replication
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