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ASU BIO EXAM WITH ACTUAL QUESTIONS AND VIRIFIED ANSWERS
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ASU BIO EXAM WITH ACTUAL QUESTIONS AND VIRIFIED ANSWERS
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ASU BIO EXAM WITH ACTUAL QUESTIONSAND VIRIFIED ANSWERS
asexual reproduction - ANSWER directing cells to divide and
develop into new tissues and organs without a partner
sexual reproduction - ANSWER -takes more time and
energy than asexual reproduction
-genetically diverse offspring
-requires fertilization
-requires haploid gametes
-mating
most plants and animals produce_______ - ANSWER
gametes called eggs and sperm
Meiosis - ANSWER nuclear division that forms haploid cells
Meiosis I - ANSWER diploid cells divide to create 2 haploid
cells, each with one of the homologous chromosomes
Meiosis II - ANSWER 2 haploid cells divide to form 4 haploid
cells, which develop into eggs or sperm
Prophase I (Meiosis) - ANSWER -chromosomes condense
-nuclear envelope breaks down
, -spindle fibers start to form (microtubules)
-crossing over occurs
Metaphase 1 (Meiosis) - ANSWER Pairs of homologous
chromosomes move to metaphase plate
Anaphase I (Meiosis) - ANSWER homologous chromosomes
separate and move to opposite poles of the cell
Telophase and Cytokensis (Meiosis) - ANSWER -
chromosomes gather at poles of the cell
-cytoplasm divides
Prophase II (Meiosis) - ANSWER -2 cells
-a new spindle forms around the chromosomes
Metaphase II (Meiosis) - ANSWER chromosomes line up at
the metaphase plate/equator
Anaphase II (Meiosis) - ANSWER -2 cells
-centromeres divide
-chromatids move to opposite poles of the cells
Telophase II and Cytokinesis (Meiosis) - ANSWER -goes from
2 cells to 4 cells
-nuclear envelope forms around each set of chromosomes
-cytoplasm divides
Asexual organisms - ANSWER -New alleles must occur
independently
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