Is there a better way to explain a gamete than this?
Answer. A gamete has just one pair of chromosomes (haploid). All gametes, including animal eggs and sperm cells, pollen nuclei, and plant ovules, are gametes.
Do you think the following best explains how independent assortment works?
During an independent assortment, which of the following is more likely to occur: When two alleles confer the same characteristic, the feature is manifested in the same way in both individuals.
What is the role of cell growth and reproduction in the body?
It is via mitosis that cells are created that are similar to each other genetically. Mitosis aids in the growth and repair of organisms.
Which of the following statements most accurately characterises this cell’s cycle?
Answer: There are a set of activities that take place in cells as they divide and grow, known as the cell cycle. Once mitosis has been completed, the cell will have completed its division cycle. A new cell cycle begins for each of the newly formed “daughter” cells, which have now entered their own “interphase.”
How can you tell the difference between healthy cells and cancerous ones?
The only way to know for sure whether or not you have cancer is to do a biopsy. Cell samples are examined under a microscope in the laboratory. The appearance of normal cells is homogeneous, with identical cell sizes and a logical hierarchy. Cancer cells seem to be more disorganised, with varied sizes and no apparent order.
What happens to cancer cells when they divide?
Normal cells cease dividing when their genetic material (DNA) is damaged, while cancerous ones do not. As a consequence, ‘daughter’ cells with aberrant DNA or chromosomal counts are produced. Compared to the ‘original’ cell, these mutants are considerably more aberrant.
Which of the following statements provides a cell cycle-based explanation for cancer?
Unchecked cell division is the cause of cancer, which occurs when the systems that control the cell cycle malfunction. It all starts with a change in the DNA sequence of a gene that codes for one of the regulatory molecules. A protein that doesn’t work properly is the result of faulty instructions.
What are the characteristics of cancer cells?
The nucleoli are prominent, the cytoplasm is scarce and highly pigmented, and the nucleus is massive and uneven in size and form. Cytoplasm is either pale and sparse in the malignant cell.
Which of the following statements most accurately characterises the meiotic process?
C. separation of sister chromatids is the best way to characterise meiosis.
What is the best phrase to describe the process of increasing cell numbers?
MITOSIS is the correct answer. Explanation: There are two new cells formed when a single cell divides into two, each with the same number of chromosomes. As a result, the total number of cells grows.
Which of the following statements most accurately describes the cell cycle’s interphase phase?
Which of the following statements most accurately describes the cell cycle’s interphase? During interphase, a cell is able to perform metabolic functions. Cancer cells have different mechanisms for regulating the cell cycle than do healthy cells.
Cellular respiration may be summarised in which way?
The most accurate definition of cellular respiration is E) the transformation of chemical energy contained in food molecules into a form that organisms can use.
A crossover event takes place when two different time zones cross over.
During a cross-over occurrence, what happens?
Homologous chromosomal chromatids exchange portions that correspond to one another. Twinning occurs between homologous quads that develop in prophase I.
Which of the following statements best explains the function of meiosis?
To what extent does meiosis contribute to the creation of gametes? In order to increase the chance of producing genetically distinct kids by reducing the chromosomal count.
What is the source of the monoclonal cancer cells?
This indicates that tumours are formed from a single ancestral cell that made a transition from a normal to a malignant condition, according to educational materials given by the National Institutes of Health .