anatomy lab test 3
Terms
undefined, object
copy deck
- ____ 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