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genetics

certain questions about genetics formed by mendel

QuestionAnswer
the passing of traits from parent to offspring heredity
different forms of the same gene alleles
organisms with two identical alleles (ss) homozygus
how many chromosomes are in a human sex cell 23
how many chromosomes are in a human 46
what is found inside the nucleus that controls all the cells activities DNA
the organisms apppearance phenotype
the combination of alleles genotype
the set of instructions for each characteristic that are donated by the parent to the offspring called? genes
when cells are not dividing what stage of the cell cycle are they in? interphase
in a dna molecule which bases pair together? citosine and guanine/ thymine and adanine
in a sna strand what are the sides of the molecule made of? sugar and phosphate molecules
in a dna strand what are the rungs of the ladder made of? nitrogen bases
If a plant has 20 chromosomes in its egg cell then how many chromosomes would be in its leaf cell? 40
what are the steps of mitosis? Prophase, Metaphase, Anaphase, Telophase, or just PMAT
how are sex cells different from other human cells? they have half the ammount
what is the order of the cell cycle? interphase prophase metaphase anaphase telophase cytokinesis or just ipmatc
how is asexual reproduction important to humans it is how most of their body cells reproduce
what happens during metaphase the chromosomes line up in the center
what happens during anaphase the cells divide to different sides
what is Tt heterozygous or hybrid
what is TT homozygous or purebred
why do cells need to produce new cells so they can replace dying ones
what is a heterozygous organism one dominant allele (T) and one recessive allele (t) ex:Tt or Rr or Pp or etc.
Created by: 1962116956