biology help please????????????

User Generated

elqre_OVATB

Science

Description

define these words please

  • Meiosis
  • Diploid
  • Haploid
  • Gametes
  • Homologous chromosomes
  • Synapsis
  • Crossing over
  • Independent assortment

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Explanation & Answer

Meiosis-  division which creates haploid daughter cells rather then diploid ones like mitosis. It is only found in gametes ( egg and sperm) all other eukaryotic cells divide by mitosis.

Diploid- an organism or cell which contains 2 complete sets of chromosomes(2n)

Haploid- an organism or cell which contains 1 complete set of chromosomes (n)

Gametes- egg or sperm

Homologous Chromosomes-a pair of chromosomes( one from each parent) that have similiar genes but different alleles.

Synapsis-The point in meiosis when the homologous chromosomes line up side by side.

Crossing Over-the exchange of genetic material between homologous chromosomes during meiosis that results in genetic variation of individuals.

Independent assortment-the random assortment of alleles and homologous pairs during meiosis.

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Anonymous
I was having a hard time with this subject, and this was a great help.

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