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32 Cards in this Set

  • Front
  • Back
____ is the process of nuclear division
mitosis
_____ is the process that divides the cytoplasm
cytokenesis
the period between nuclear division is called what?
interphase
what is the name of the seperate arms of a chromosome after the process of DNA synthesis?
chromatids
what is the name of the DNA in the nucleus when it is not in the condensed form of the chromosomes?
chromatin
in what phase of mitosis do chromosomes start to condense?
prophase
in what phase of mitosis do chromosomes line up?
metaphase
in what phase of mitosis does the centromere divide and the sister chromatids seperate?(chromosomes may look "V" shaped)
anaphase
in what phase of mitosis have the chromosomes reached the opposite poles of the cell, and then the chromosomes unwind and resume the form of a chromatin
telephase
____ is the process that produces the germ cells
meiosis
meiosis is often called _____ _____
reduction division
the pairing of homologous chromosomes is called ______
synapsis
in what phase of meiosis does the chromotin condense and crossing-over happens?
prophase
in what phase of meiosis does the homologous pairs of chromosomes align?
metaphase
in what phase of meiosis are the homologous chromosomes pulled apart?
anaphase
in what phase meiosis does chromosomes arrive at the opposite poles, and the results are two cells?
telephase
the only substantial difference in meiosis 2 and mitosis is that meiosis 2 results in _ ____ cells which differentiate into gametes
four haploid
what is a unit of heredity located at a paticular site on a chromosome?
gene
what are the alternate forms of a gene that occur on homologous chromosomes?
allele
the genetic make up of an individual is a what?
genotype
what is the outward appearance of an organism called?
phenotype
if two individuals that are heterozygous for one trait are crossed it is called a what?
monohybrid cross
what is the allele or heredity factor that expresses itself in the phenotype only when the genotype is homozygous?
recessive allele
_____ is the number of chromosomes found in a gamete
haploid
_____ is the number of chromosomes found in somatic (body) cells
diploid
____ is part of sexual reproduction that functions to generate genetic variability
meiosis
______ is the genetic make up of an individual
genotype
_____ is the outward appearance of an organism
phenotype
the ____ _____ is the first layer surrounding the secondary oocyte
corona radiata
the ____ __ is the initial site of blood production
yolk sac
the ____ is the inner sac that covers the embryo
amnion
the ____ surrounds the embryo and fetus on the outside of the amnion
chorion