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What are two of the main differences between mitosis and meiosis?
Mitosis produces genetically identical cells - Meiosis results in genetic variation. Mitosis is asexual reproduction - Meiosis is sexual reproduction
At the end of one round of oogenesis, how many eggs are produced?
1 - 3 polar bodies die off
At the end of one round of spermatogenesis, how many sperm are produced?
4
True/False: Homologous pairs carry genes controlling different inherited traits
False, homologous pairs carry genes controlling the SAME inherited traits
N = ?
23
2n = ?
46
How many total divisions does meiosis have compared to mitosis?
Two divisions (Meiosis I and II)
Having two complete sets of chromosomes, one from each parent, is known as
Diploid
Having a single set of unpaired chromosomes (23) is defined as:
Haploid
Meiosis is _________________ reproduction
Sexual
The number of pairs of non-sex chromosomes, known as autosomes, is:
22 pairs
Humans have ______ pairs of chromosomes
23
The sites of chromosome crossing over is called:
Chiasmata
The growth process of the male gamete is known as:
Spermatogenesis
The growth process of the primary egg is defined as:
Oogenesis
This is important to populations as the raw material for natural selection
Genetic Variation
When different genes independently separate from one another when reproductive cells develop it is defined as:
Independent Assortment
_______________________ pairs carry genes controlling the same inherited traits
Homologous
A fertilized egg is defined as a:
Zygote
Pairs of chromosomes that are similar in shape and size are known as:
Homologous chromosomes
A zygote (fertilized egg) has _______ chromosomes
46
Sperm have _____ chromosomes
23
Eggs have ______ chromosomes
23
Gametes have ______ the number of chromosomes
Half
A method of organizing the chromosomes of a cell in relation to number, size, and type if known as:
Karyotype
Sex cells divide in meiosis to form these cellular products in males and females
Boys = sperm Girls = egg
The form of cell division by which gametes with half the number of chromosomes are produced is known as:
Meiosis
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