Cellular Reproduction Dr. Allen

Open Ended

How do microscopic images, like the one shown, contribute to our understanding of biological processes?

Multiple Choice

What is the significance of using scale bars, such as the one labeled '50 μm', in microscopic images?

• They indicate the magnification level of the image.

• They help estimate the actual size of structures in the image.

• They show the type of microscope used.

• They provide information about the color staining technique.

Multiple Choice

Which of the following statements best explains why humans and dogs can suffer from similar diseases such as breast cancer and melanoma?

• Humans and dogs have similar diets.

• Humans and dogs are 95 percent identical genetically.

• Humans and dogs live in similar environments.

• Humans and dogs have the same number of chromosomes.

Multiple Select

Which of the following are true about stem cells and cloning, based on John Gurdon's research?

• Adult cells can be reverted to embryonic stem cells.

• Each cell contains instructions for building a new individual.

• Cloning only works in frogs.

• Stem cells can only be found in embryos.

Multiple Choice

Why are large cells considered less efficient than small cells?

• They have more DNA.

• They have a lower surface area to volume ratio.

• They divide more slowly.

• They contain more organelles.

Open Ended

What would happen if you were injected with a drug that prevents your cells from dividing?

Multiple Choice

Which of the following best describes the main difference between prokaryotic and eukaryotic chromosomes?

• Prokaryotes have multiple chromosomes in the nucleus, eukaryotes have a single chromosome in the cytoplasm.

• Prokaryotes have a single chromosome in the cytoplasm, eukaryotes have multiple chromosomes in the nucleus.

• Both prokaryotes and eukaryotes have chromosomes in the nucleus.

• Prokaryotes and eukaryotes both have multiple chromosomes in the cytoplasm.

Multiple Select

Which of the following statements about chromosomes in different species are correct?

• Humans have 46 chromosomes.

• Dogs have fewer chromosomes than cats.

• Goldfish have more chromosomes than horses.

• Chimpanzees have more chromosomes than dolphins.

Multiple Choice

What is the function of the centromere in a chromosome?

• It holds sister chromatids together.

• It is where DNA replication starts.

• It produces ribosomes.

• It surrounds the nucleus.

Multiple Select

Which of the following events occur during prophase of mitosis?

• Chromosomes become visible.

• Spindle forms.

• Chromatids separate.

• Centrioles move.

Open Ended

Describe what happens to chromatin during prophase of mitosis.

Multiple Choice

Which of the following events occurs during prophase in mitosis?

• Centrioles migrate to poles

• Chromosomes line up at the center

• Cell plate forms

• Chromatids separate

Multiple Select

Which structures are involved in the movement of chromosomes during mitosis?

• Spindle fibers

• Centrioles

• Cell wall

• Centromeres

Multiple Choice

Which phase of mitosis comes immediately after prophase?

• Metaphase

• Anaphase

• Telophase

• Interphase

Open Ended

Explain the differences between cytokinesis in animal cells and plant cells.

Open Ended

Describe the main changes that occur in a cell during prophase of mitosis.

Open Ended

Can you identify the stages?

Open Ended

Name the phases starting at the top.

Multiple Choice

Which phase of mitosis is shown in the bottom right image?

• Prophase

• Metaphase

• Anaphase

• Telophase

Open Ended

Name the phase and the structure indicated by the arrow in the image.

Multiple Choice

What does the scale bar labeled '50 μm' in the microscopic image represent?

• It shows the actual size of the cells in micrometers.

• It indicates the magnification level of the microscope.

• It marks the location of a specific cell structure.

• It is used to measure the color intensity of the image.