Genetics And Heredity Question Preview (ID: 45158)
Genetics And Heredity.
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Heredity is the passage of what from parent to offspring?
a) Genetic material
b) oxygenated blood
c) digestive enzymes
d) connective tissue
A gene is best described as
a) the release of energy
b) a unit of heredity
c) the waste produced by cells
d) a collection of adaptations
The inherited traits of an organism are governed by –
a) leukocytes
b) genes
c) cytoplasm
d) enzymes
The hereditary information in animal and plant cells is located on the chromosomes, which the cells store in the
a) vacuoles
b) nucleus
c) cytoplasm
d) ribosomes
Which of the following statements accurately denotes the frequency of expression of dominant and recessive traits?
a) Dominant traits = always / Recessive = never
b) Dominant traits = never / Recessive = sometimes
c) Dominant traits = always / Recessive = sometimes
d) Dominant traits = sometimes / Recessive = sometimes
What structure in a cell contains the genetic information?
a) lysosome
b) ribosome
c) nucleus
d) mitochondria
Recessive genes are expressed under which of the following conditions?
a) every time they are found in an organism
b) in green plants that reproduce through seeds
c) when asexul organisms produce a pair of offspring
d) only in the absence of dominant genes for the same trait
Recessive traits are expressed –
a) in one quarter of all offspring produced
b) always, in all members of the population
c) only when the domininant gene is not present
d) if the trait is carried by the male parent
Which is the correct order from largest to smallest?
a) Chromosome-nucleus-cell-organism-gene
b) gene-chromosome-nucleus-cell-organism
c) nucleus-cell-chromosome-gene-organism
d) organism-cell-nucleus-chromosome-gene
Blue eyes is an example of a
a) phenotype
b) genotype
c)
d)
BB is an example of a
a) phenotype
b) genotype
c)
d)
Freckles is an example of a
a) phenotype
b) genotype
c)
d)
Homozygous dominant is an example of a
a) phenotype
b) genotype
c)
d)
Aa is an example of a
a) phenotype
b) genotype
c)
d)
Widow's peak is an example of a
a) phenotype
b) genotype
c)
d)
Rr shows
a) dominant
b) recessive
c)
d)
nn shows
a) dominant
b) recessive
c)
d)
Ee shows
a) dominant
b) recessive
c)
d)
Eye color, hair color, freckles, widow's peak are
a) genetics
b) heredity
c) traits
d) dominant
The passing of traits from parent to offspring is
a) traits
b) genetics
c) heredity
d) phenotypes
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