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Biology - Unit 7

Meiosis

QuestionAnswer
Process of combining egg & sperm Fertilization
An organized picture of chromosomes arranged in pairs Karyotype
Mitosis or Meiosis? Results in cells having half the number of chromosomes as somatic (body) cells Meiosis
Mitosis or Meiosis? Results in cells identical to the parent cell Mitosis
Mitosis or Meiosis? Crossing over occurs Meiosis
Mitosis or Meiosis? Has two rounds of cell division Meiosis
Mitosis or Meiosis? Homologous chromosomes pair up. Meiosis
Mitosis or Meiosis? Type of cell division used for growth. Mitosis
Mitosis or Meiosis? Type of cell division that occurs in sex cells. Meiosis
A dog has 78 chromosomes in her body cells. How many chromosomes would the dog have in her eggs? 39 chromosomes
Having 3 copies of a chromosome Trisomy
Having only 1 copy of a chromosome in body cells Monosomy
Trisomy 21 produces a range of symptoms known as _____. Down Syndrome
The sex chromosomes for a female are ____. XX
The sex chromosomes for a male are ____. XY
When chromosomes do not separate properly during Meiosis that is called ______________. Nondisjunction
A rice plant has 12 chromosomes in its body cells. How many chromosomes would be in a rice zygote? 12
Which process creates more genetic variation in a population, sexual reproduction or asexual reproduction? Sexual reproduction
Mitosis or Meiosis? Used for asexual reproduction Mitosis
What kind of cells go through mitosis? Somatic cells (body cells)
What kind of cells go through meiosis? Sex cells in testes and ovaries
Name of the male gamete that's produced in the testes. sperm
Name of the female gamete that's produced in the ovaries. egg (ovum)
During fertilization, the sperm and the egg fuse together to form a _______________. Zygote
The process that produces gametes. It creates 4 haploid cells that are NOT identical. Meiosis
Number of gametes formed through meiosis 4
Pair of chromosomes that are similar in shape and size and control the same traits. Homologous chromosomes
Homologous chromosomes are made up of 2 _________________. Homologs (one from each parent)
Phase of meiosis when synapsis and crossing over occurs. Prophase I
The process of synapsis forms _________________, where homologous chromosomes come together. tetrads
Are the homologous chromosomes separated in Meiosis I or Meiosis II? Meiosis I
Process in Prophase I where chromosomes exchange DNA creating new combinations of traits Crossing over
Part of Metaphase I where homologous chromosomes line up at random to create diversity in the offspring. Independent Assortment
Are sister chromatids separated in Meiosis I or Meiosis II? Meiosis II
Diploid (2n) number in humans. 46 chromosomes (2 sets of 23, one set from mom, one set from dad).
Haploid (n) number in humans. 23 chromosomes (each parent will pass on 23 chromosomes to the offspring).
Created by: Ms_Tacy
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