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BIO101

EXAM 1

QuestionAnswer
3 differences between dna and rna. 2 similarities dna - double stranded,thymine base, genetic storage rna - single stranded, uracil base, helper in protein formation nucleic acids and phosphate sugar backbone
what makes cell membrane selective lipid center
what type of cells undergo mitosis somatic
what type of cells undergo meiosis gametes
why do siblings necessarily not look alike? crossing over and independent assortment
what are the functions of polar bodies? take up excess genetic number and food for zygote
why are gametes haploid? because the haploid egg and sperm combine and make a diploid zygote with 46 chromosomes
the fluid mosaic model describes what structure? plasma membrane
why are unsaturated fats liquid at room temp? because they kink so they don't stack
why are saturated fats solid at room temp? they stack without any issues
when does crossing over occur? P 1
when does cytokinesis begin? late anaphase
what phase does synapsis occur? P 1
what makes up the cytoskeleton? which one is the largest? which one is the smallest? microtubules, intermediate filaments, microfiliments. microtubules. microfiliments
which one is used for cell division? which one makes up cilia and flagella? microtubules. microtubules
Created by: tainia_xo
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