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Articles related to "Sister Chromatids"
Chromosomes & Sister Chromatids When is DNA considered a chromosome? What is a sister chromatid and how does it differ from a chromosome? The article unravels some of the lingo of DNA. sister chromatids • cell nuclear division mitosis • duplicated homologous chromosomes • eukaryotic cell cycle • parent daughter cell
DNA: Duplicated and Homologues Sexual reproducers have 2 sets of homologous chromosomes. Cells must duplicate DNA prior to cell division. What is the distinction between duplicates and homologues? homologous chromosome • homologue • duplicated chromosome • replicated chromosome • homologous duplicated chromosomes
Meiosis & Sexual Reproduction Meiosis, a type of cell division, results in production of gametes (eggs & sperm). Genetically unique sex cells combine at fertilization to form one-of-a-kind offspring. meiosis mitosis • meiosis sexual reproduction • types of cell division • sex cells sperm egg • gametes fertilization
What Is Mitotic Cellular Division? In order for organisms to grow, develop and maintain life, cells must divide. Cellular division involves the basic stages of interphase, nuclear division and cytokinesis. stages of mitosis • eukaryotic cell cycle • mitotic cellular division • nuclear divisionof cell • mitosis in somatic cells
Introduction to Chromosomes in Human Cells First discovered in the 1800s, chromosomes are cell bodies that provide efficient storage for DNA. what are the functions of chromosomes • different types of chromosomes • number of chromosomes in humans • centromeres and telomeres in chromosomes • telomeres and aging
Ploidy: Diplod and Haploid Humans are diploid organisms with two sets of homologous chromosomes, but we also contain haploid sex cells with one set and half the number. ploidy • haploid • diploid • 2n • chromosome number
Repairing Chromosomal Breaks A nick in the DNA strand is known as a chromosomal break. Cells have repair mechanisms for both single strand and double strand breaks. dna repair of chromosomal breaks • dna break repair • double strand break repair • homologous recombination of dna breaks • chromosomal breaks |
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