A skin cell of a red fox has 34 chromosomes. You look at the cell under a microscope and see that it has 34 chromosomes and one nucleus. Several hours later, you look at the same cell again and see that it has double the amount of DNA and one nucleus. A little while later, you see that it has 68 chromosomes and two nuclei. What stage of the cell cycle was this cell in when you viewed it at each time point?
Group of answer choices
First view: S; second view: prophase; third view: cytokinesis
First view: G1; second view: G2; third view: telophase
First view: G1; second view: metaphase; third view: cytokinesis
First view: G0; second view: G2; third view: telophase
Flag question: Question 3
Question 3 3 pts
How many generations does it take to develop a new plant species by polyploidy?
Group of answer choices
about 20
1
2
10
Flag question: Question 4
Question 4 3 pts
Which of the following helps maintain the structure of chromosomes and control the activity of genes?
Group of answer choices
ribosomes
proteins
centromeres
the nuclear membrane
Flag question: Question 5
Question 5 3 pts
Looking into your microscope, you spot an unusual cell. Instead of the typical rounded cell shape, the cell has a very narrow middle separating two bulging ends. It sort of looks like the number 8! You realize that this cell is
Group of answer choices
in the S phase of interphase.
undergoing cytokinesis.
in the G1 phase of interphase.
about to undergo mitosis.