Genetic Engineering Question Preview (ID: 34560)
Mutations Through DNA Fingerprinting.
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In the past, humans developed varieties of dogs, such as the German shepherd and the bearded collie, using
a) selective breeding for particular traits
b) recombination of genes during mitosis
c) mutations present only in body cells
d) natural selection of favorable traits
The processes of deletion, insertion, and substitution can alter genes in a skin cell. The altered genes will most likely be passed on to
a) sperm cells
b) egg cells
c) every cell that develops from that skin cell
d) only a few of the cells that develop from that skin cell
In an organism, a muscle cell has the same DNA as a nerve cell, yet the cells perform different functions. This is possible because
a) different mutations occur in each cell type, changing the genetic instructions
b) temperature variations within the body alter DNA
c) proteins in each cell type change the structure of DNA
d) different parts of the genetic instructions are used in each type of cell
Melanoma is a type of cancer in which abnormal skin cells divide uncontrollably. Some chemotherapy drugs, which stop the growth of the cancer, directly interfere with the process of
a) meiosis
b) mitosis
c) coordination
d) recombination
Which activity enables humans to produce new genetic combinations in other organisms?
a) selecting and breeding the organisms for specific traits
b) increasing the number of enzymes available to the organisms
c) growing organisms that reproduce asexually
d) decreasing the amount of DNA in the diet of the organisms
A woman changes her hair color to red; however, her children will not inherit this red hair color because the woman does not have
a) genes for red hair in her skin
b) genes for red hair in her sex cells
c) proteins for red hair in the placenta
d) proteins for red hair in her egg cells
An organ, such as a kidney, used for transplant needs to be tested for compatibility with the person who is to receive the organ. If this is not done, the
a) donated organ might attack the body
b) donated organ might attack the immune system
c) immune system might attack its own body cells
d) immune system might attack the donated organ
The DNA of a fly and the DNA of a gorilla are made up of subunits that are
a) arranged in the same order in both species
b) arranged in chains of the same length in both species
c) different bases in each of the two species
d) in different sequences in each of the two species
In a cell teh original sequence of bases was ATTCAGACG. After the replication process the new cells had the sequence ATTCGGACG. This is an example of
a) cell reproduction
b) a mutation
c) meiosis
d) gene replication
Modern technology could be used to clone pet dogs and cats. The cloned animals would resemble the original pets because
a) the genes of the new animals are different from those of the original pets
b) half of the genetic information of the new animals is the same as that of the original pets
c) the new animals have mutations not found in the original pets
d) the new animals have the same genetic information as the original pets
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