Bellwork Quiz Practice Flashcards
How does a somatic cell that has just completed the S phase of its cell cycle compare to one that is in G1?
it has twice the amount of DNA
researcher demonstrates that fish species in a freshwater aquatic environment show genetic variation in each generation. Which property in fish species explains this variation?
Their reproductive cells perform meiosis
hat is the result of mitosis of one diploid cell?
2 genetically identicallt diploids
Humans have 23 different chromosomes. In a typical liver cell, the total number is 46 chromosomes. After mitosis of a human liver cell, how many chromosomes are in each daughter cell?
46
Why is meiosis important for sexual reproduction?
Meiosis reduces the number of chromosomes
meiosis, separation of homologous chromosomes occurs during ______________ while separation of sister chromatids occurs during _______________
anaphase I and anaphase II
Why does chromatin condense into chromosomes for cell division?
to allow the chromosomes to move without becoming entangled and breaking
Which of the following are true of this process? Choose 3.
-occurs between homologious chromosomes
-occurs during Prophase I
-it increases genetic diversity in offspring
What is the correct order of mitosis?
PMAT
Which three processes occur during meiosis?
-crossing over
-independent assortment
-formation of gametes
