Synapsis is the process wherebya. homologous pairs of chromosomes separate and migrate toward a pole.b. homologous chromosomes exchange chromosomal material.c. homologous chromosomes become closely associated along their lengths.d. the daughter cells contain half the number of chromosomes as the parent cell.

Q: Paired homologous chromosomes (the tetrad) separate from one another and move towards opposite poles…

A: Cell division is the process of dividing the existing cells to form new cells. One parental cell…

Q: The chromosomes are aligned at the spindle equator during   a. telophase.   b. interphase.   c.…

A: Cell cycle: - it is a series of changes occur in a newly divided cell through which it duplicates…

Q: The complex of proteins that holds two chromatids together is called the... Group of answer choices…

A: Cell division is the process of division of cell into daughter cell. The cell division can take…

Q: Which of the following statements accurately describes a differencebetween mitosis and meiosis?a.…

A: Answer is e.) Both a and c are correct.

Q: Crossing-over occurs betweena. sister chromatids of the same chromosome.b. chromatids of…

A: Answer is c.) non sister chromatids of a homologous pair.

Q: Dolphins have 44 chromosomes. How many chromatids are there in the following cells  and/

A: Introduction: The series of activities that a cell goes through as it develops and splits into two…

Q: Which of the following statements are true? a. after contromeres divide, chromatids are known as…

A: All the statements are true, therefore the correct option is d.Centromere is the region of a…

Q: Homologous chromosomes are (a) the same thing as sister chromatids. (b) a pair of chromosomes of the…

A: Chromosomes are filamentous bodies present in the nucleus. The genetic material is distributed in…

Q: Homologous chromosomes come together and line up along their entire lengths A. in meiosis in…

A: Meiosis is a unique form of germ cell division in sexually reproducing animals that results in the…

Q: Which of the following occurs during metaphase I?   A. Homologous chromosomes pack tightly, pair up,…

A: The cell is the basic structural and functional unit of life. It carries out various functions in…

Q: At metaphase I the kinetochores of sister chromatids are a. attached to microtubules from the same…

A: In eukaryotes, cell division is of two types:- meiosis and mitosis. Meiosis is responsible for the…

Q: Comparing somatic cells and gametes, somatic cells area. diploid with one set of chromosomes.b.…

A: Answer is c.) diploid with two sets of chromosomes.

Q: Think about human cells that have 46 chromosomes. Now consider human cells that are undergoing…

A: Metaphase is a stage of cell cycle occuring in both mitosis and meiosis cell division processes.…

Q: Crossing over occursA. in late interphase.B. in early to mid prophase.C. in mid to late prophase.D.…

A: A homologous pair of chromosomes are approximately the same length and centromere position. They…

Q: The kinetochore is a structure that functions toa. connect the centromere to microtubules.b. connect…

A: Chromosomes are filamentous bodies present in the nucleus. They are composed of DNA(…

Q: This begins early in the telophase and continues after the nucleus has formed in the daughter cells.…

A: The two types of cell division include mitosis and meiosis. Mitosis mainly contributes to the…

Q: Crossing over is the process wherebya. homologous chromosomes cross over to opposite sides of the…

A: Answer: Introduction: Crossing over means which occurs among the homologous chromosomes to rise…

Q: Pairs of chromosomes with almost identical geneticcomposition and that are found in cells of both…

A: Chromosomes are the vital part of heredity , that include a thin thread like structure. Chromosome…

Q: One day while walking across campus, you see a female butterfly laying fertilized eggs, as shown in…

A: On a leaf, the female butterfly deposits fertilised eggs, initiating a number of developmental…

Q: During crossing over,a. chromatids of homologous chromosomes exchange parts.b. mutations occur with…

A: Answer- Cells undergo two different types of cell division called as mitosis and meiosis.

Q: Which of the following is not true regarding cytokinesis?*       A.Simultaneously happen with the…

A:

Q: Which of the following statements is true regarding cell cycle regulators? a. Cyclins determine…

A: Cell cycle doesn't occur in unchecked manner. Cell preperation is usually checked by regulatory…

Q: Part of cell division is that chromosomes are moved the center of the cell and then back to the…

A: Part of cell division is that chromosomes are moved the center of the cell and then back to the…

Q: At the metaphase plate during metaphase II of meiosis, there are Select one: O A. Bivalents. O B.…

A: Meiosis is a type of cell division wherein the chromosome number is halved in each of the daughter…

Q: The role of cohesin is toa. make chromosomes more compact.b. allow for the replication of…

A: Condensin and cohesin are two most important multiprotein complexes that help the chromosomes to…

Q: Which of the following happen during anaphase?   a. the nucleoli disappear    b. each…

A: Anaphase is the stage of mitosis which occurs after metaphase. The replicated chromosomes are split…

Q: At the metaphase plate during metaphase II of meiosis, there area. chromosomes consisting of one…

A: Answer is option b.) unpaired duplicated chromosomes.

Q: Which of the following is the term used to describe asexualreproduction in a single-celled…

A: Introduction Reproduction is the characteristic of all biological species present on the Earth. All…

Q: Phase S Phase G2 Phase M Phase G0 Phase   Synapsis occurs during ............. of meiosis…

A: Answer. During the G0 phase of the cell cycle the cells are not ready to repicate but instead…

Q: Identify the structure the letter is indicating? 88 d Centromere Choose... + Homologous Chromosomes…

A: Chromosome is a condensed form of chromatin. It carries genetic material in the form of DNA. The DNA…

Q: the kinetochore of a metaphase chromosome is a. The ends of the chromosome that are duplicated by…

A: Kinetochore of a metaphase chromosome :-

Q: 25. Crossing over involves each of the following with the EXCEPTION of O A. Transfer of DNA segments…

A: Crossing over is defined as the exchange of genetic material between two homologous chromosomes. It…

Q: During meiosis Ia. homologous chromosomes synapse.b. crossing over between homologous chromosomes…

A: Meiosis is the special type of cell division of germ cells in sexually reproducing organisms and…

Q: Crossing-over occurs between Select one: O A Sister chromatids of the same chromosome. B. Two…

A: A cell biology is defined as the study of structure and function of the cell where the cell is the…

Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.