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33 Cards in this Set
- Front
- Back
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_____ is the most fundamental charctrestics of life |
Cell division |
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____ conatins most of cells DNA |
Nucleous |
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Complex of DNA and protein is called |
Chromatin |
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______ are highly coiled and condensed chromatin fibers |
Chromosomes |
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Chromosomes 1st studied by |
Walther flemming |
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What did flemming used to study cell division |
Larvae og salamander |
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Chromatin consist of |
DNA & histones |
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DNA fullform |
Deoxyribonucleic acid |
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Proteins in dna |
Histones |
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Shape of DNA 1st studied by |
Rosalind Franklin |
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Double stranderd helical structure of dna proposed by |
Watson&Crick |
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Each single DNA composed of repeating |
Nucleotides |
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4 types of nitrogenous bases |
Adenine Guanine Cytosine Thymine |
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Adeninie pairs with |
Thymime (2 hydrogen bonds) |
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Guanine pairs with |
Cytosine (3 hydrogen bonds) |
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___ are protiens which help in coiling and packaging of DNA into ncleosomes |
Histones |
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DNA stands wind around a core of ___ histone proteins |
8 |
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The point of attachment of chromatuds to chromosome |
Centromere |
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Specefic sequence of nucleotide on chromosomes |
Genes |
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Cell cycle |
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During ____ phase cell prepare for next cell divison &grow to the same size as mother cell |
Interphase |
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In synthesis phase more ____ is produced |
Dna |
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Non stop cell cycle may lead to |
Tumours |
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Cell division leading to production of diploid cells |
Mitosis |
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Cell division leading to haploid cell |
Meiosis |
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The same chromosome no is maintained in |
Mitosis |
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Division of nucleous |
Karyokinesis |
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In which cell asters are formed |
Mitosis |
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Asexual reproduction is in |
Mitosis |
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Cell division which produce gametes |
Meiosis |
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No of chromosome in sex cells is havled in |
Meiosis |
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Crossing over is seen in |
Chaisma |
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____ groups of histone surronded. By DNA strands |
Nucleosome |
