True: heterozygous means having different alleles (ex: Bb), genotype is the coding that controls the phenotype, phenotype is the physical traits, the cells produced by meiosis are not identical to each other, dominant traits always show up, even if there's a recessive trait too, DNA contains genetic information, thymine always pairs with adenine, nucleotides are made of a sugar-phosphate group and a nitrogen base, a Punnett square is a prediction of possible outcomes, meiosis creates haploid cells, which have half the number of chromosomes as body cells, False: heterozygous means having the same alleles (ex: BB or bb), phenotype controls the genotype, genotype is what you look like, the cells produced by meiosis are always identical, recessive traits always show up no matter what, adenine always pairs with cytosine, homozygous means having different alleles (ex: Bb), nitrogen bases can pair up in many different ways, a Punnett square shows exactly how traits will be passed on, meiosis creates cells that have the same number of chromosomes as body cells,

Unit 4 Test

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