The diagram shows cells in different phases of mitosis. A student is trying to find a cell in a particular phase of mitosis. The student is looking for evidence that spindle fibers are separating the chromosomes to ensure that each new nucleus has one copy of each chromosome. Which cell is in the phase of mitosis that the student is searching for?

Oncogenes are mutated forms of genes. Oncogenes can transform a cell into a tumor cell. Some tumor cells are benign, while others are malignant. How does the presence of an oncogene lead to the formation of a tumor?

A student groups different types of cells as shown. Which table headings should the student use for the two groups?

Viruses can be transmitted through air, water, food, insect bites, and direct skin contact. Once a virus gains entry to the body, it invades a host cell in order to -

The model represents the change in the DNA content of a cell during the cell cycle? Which part of the model represents the S phase?

A student builds a model of DNA strand. Which of these models of a DNA strand shows bases that are complementary to the ones on the student's DNA model?

A singe-celled organism can be classified as a prokaryote based on the absence of -

Which statement accurately compares eukaryotic cells and prokaryotic cells?

A table complaring the characteristics of four samples is shown. Which sample most likely contains viruses?

The diagram represents the movement of three different substances across a cell membrane. Moving which of these substances across the cell membrane requires energy from ATP?

A student observed a human cheek cell under a light microscope and made these observations in the picture. Which phase of the cell cycle is this student MOST LIKELY observing?

An unspecialized cells mature, what controls their development into a specific cell type?

Which of these properties is found only in cancer cells?

Both cells and viruses have genetic material in the form of what?

Abigail is studying about viruses in her biology class. She learns that a virus cannot produce its own energy. What provides direct energy for the virus?

Liam, Benjamin, and Arjun are planning a trip to a country where a certain viral disease is prevalent. What should they take to PREVENT getting infected by the disease?

Materials are provided to students to build models of a prokaryotic cell, a eukaryotic cell, and a virus. The material and the structures they represent are listed in the table shown. Which materials would be used in all three models?

In 1898 Friedrich Loeffler and Paul Frosch found evidence that the cause of the highly contagious hoof-and-mouth disease in livestock was a microscopic infectious particle. It was discovered that this particle requires a host cell to reproduce. Which pathogen is most likely responsible for causing hoof-and-mouth disease in livestock?

Why do viruses have projections on the outside?

Which sequence of DNA bases would pair with this template strand
ATG TGA CAG

Cancer is defined as the