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A hamster resulting from sexual reproduction
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∙ 10y ago
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Offspring that result from meiosis and fertilization each have?
gene combinations different from those of either parent
What does it mean to be a dominant gene?
Genes which take precedence over their opposite number - recessive genes. i.e. when the genetic make-up of an organism is being determined the dominant gene will out-rank any recessive gene and more often than not be the determinant one.
How can an organism exhibit a trait not possessed by either parent?
Spontaneous mutation can affect a gene. The Organism can learn - though some would not call anything learned "a trait"
What kind of gene mutation is most disruptive to an organism?
Deletion is most disruptive to an organism.
How can a mutation in a gene affect the traits that an organism has'?
The gene will code for a different protein than it should.
Offspring that result from meiosis and fertilization each have?
gene combinations different from those of either parent
What does a gene do in a organism?
A gene has all the traits of the organism
What is it called when an organism that has two alleles that are the same?
the organism that have two identical alleles would be called homozygous for that particular gene.
What is the process by which genes from one organism are transferred into DNA of another organism?
You would need to use Gene splicing to insert a foreign gene into an organism.
When you compare an mRNA product of an unidentified organism with the gene you discover that the mRNA is much smaller than the actual gene coding for it Is the organism a bacteria or eukaryote why?
The mRNA product is shorter than the gene coding for it as a result of splicing. Therefore the organism in question is likely to be a Eukaryote, as Prokaryotes rarely undergo splicing.
Thought Out what process gene from one organism can be combined with a gene from another organism?
Splicing
All organisms that sexually reproduce exhibit behavior that encourages reproductive activities from the opposite sex. Why would this form of behavior most likely be naturally selected?
It will bring the best variation in gene combinations.
What does it mean to be a dominant gene?
Genes which take precedence over their opposite number - recessive genes. i.e. when the genetic make-up of an organism is being determined the dominant gene will out-rank any recessive gene and more often than not be the determinant one.
What term describes an organism that carriers an allele but does not show its effects?
You would call such an organism a carrier.
A transgenic organism that has extra copies of a gene produces more of RNA the that is coded for by the gene?
A transgenic organism that has extra copies of a gene produces more of the DNA that is coded for by that gene
What is meant by gene knockout testing?
A knockout organism is an organism that's missing a functioning gene. They're used to test the function of genes and genetic diseases, because a researcher can observe specific changes in a gene knockout organism's gene expression and traits.
Why is a son who receives the allele for combinations from his mother always colorblind?
Since the mother would be considered a carrier, the gene will be produced in the offspring. the son will receive that gene and will be colorblind.
