B cells play a crucial role in the defense of pathogens. They are responsible for producing antibodies that help fight the enemy.
Answer:
The meristem is a type of tissue found in plants. It consists of undifferentiated cells (meristematic cells) capable of cell division. Cells in the meristem can develop into all the other tissues and organs that occur in plants.
26 chromosomes
A body cell from a frog has 26 chromosomes. 3. A sperm cell from a dog contains 39 chromosomes.
Answer:
Cell wall synthesis
Explanation:
Antibiotics are the compounds that work against bacteria and kills bacteria or slow their growth. Every antibiotic have their own mode of action. Beta-lactam antibiotics like penicillin and cephalosporins work on cell wall synthesis.
They stop the synthesis of peptidoglycan by inhibiting the transpeptidation reaction. So when no new cell wall is added into bacteria, holes creates in the cell wall which allows the free movement of solute inside the bacteria cell that results in osmotic lysis of the bacterial cell. Therefore the right answer is cell wall synthesis.
Answer:
It's MITOSIS.
Explanation: We are also learning about this in class.
During mitosis, a eukaryotic cell undergoes a carefully coordinated nuclear division that results in the formation of two genetically identical daughter cells. Mitosis itself consists of five active steps, or phases: prophase, prometaphase, metaphase, anaphase, and telophase.
