Class notes
ENZYMES
Enzyme notes from Environmental Zoology course.
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1.
What is a GAMETE?
Answer: A mature haploid male or female germ cell that is able to unite with another form of the opposite sex in sexual reproduction to form a zygote; (sex cell).
2.
What is a ZYGOTE?
Answer: A diploid cell resulting from eh fusion of two haploid gametes; a fertilized ovum.
3.
What is MONOHYBRID?
Answer: A hybrid that is heterozygous with respect to a specified gene.
4.
What is an ALLELE?
Answer: One of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.
5.
What is ANEUPLOIDY?
Answer: The presence of an abnormal number of chromosomes in a cell. It does not include a difference of one or more complete sets of chromosomes.
6.
What is a INTRON?
Answer: A segment of a DNA or RNA molecule that does NOT code for proteins and interrupts the sequence of genes.
7.
What is a FOSSIL?
Answer: The remains or impression of a prehistoric organism preserves in petrified form or as a mold or cast in rock.
8.
What is ALLOPATRIC SPECIATION?
Answer: Speciation by geographic isolation; something extrinsic to the organisms prevents two or more groups from mating with each other regularly, eventually causing that lineage to speciate.
9.
What is a GENE?
Answer: A unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of offspring.
10.
What is BINOMIAL NOMENCLATURE?
Answer: The system of nomenclature in which two terms are used to denote a species of living organism, the first one indicating the genus and the second the specific epithet.
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