Pairs of chromosomes with almost identical geneticcomposition and that are found in cells of both males andfemales are calleda. sex chromosomes.b. autosomes.c. polyploid.d. chromatids.

Q: Humans have 23 chromosomes per set. A person with 45 chromosomescan be described as beinga.…

A: Normally, humans have 23 pairs of chromosomes i.e. 46 chromosomes in total. But sometimes, due to…

Q: If a set of chromosomes is one copy of each kind of chromosome, how many sets are in a human…

A: The formation of male and female gametes required meiotic cell division, in which the parent germ…

Q: Cells at the end of meiosis (i.e. each of the four gametes) have _____ when compared with cells at…

A: Meiosis is the cell division procedure that results in the formation of sperm and egg cells,…

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: the metaphase plate during metaphase I of meiosis, there are   Select one: A.  Unpaired…

A: Meiosis is a reduction division. it involves two divisions first division is the reduction division…

Q: A diploid fruit fly has eight chromosomes. Which of the followingterms should not be used to…

A: Drosophila is a flies genus that belongs to the family Drosophilidae and the members of this are…

Q: Meiosis explains whya. you inherited half of your DNA from each of your parents.b. the sister…

A: All the cells undergo differentiation and regeneration forming two types of cells, somatic cells…

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: 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: Which of the following occurs in meiosis I?a. All chromosomes duplicate.b. Homologous chromosomes…

A: Introduction  All cells with some exceptions undergo cell division in order to multiply. During cell…

Q: Diploid cells have a. two chromosomes.b. two sets of chromosomesc. one set of chromosomes.d. two…

A: During the fertilization process, the male and female species participate in the fusion process and…

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: Use the following images to answer the next two ques 5 6 ............. ******* S : 3 Stage 8 in the…

A: There are two types of cell division: mitosis and meiosis. Cell division happens when a parent cell…

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

A: Meiosis can be defined as process by which single cell divides twice in order to produce four cells…

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: What two processes are responsible for generating genetic diversity in gametes? Select one or…

A: Genetic diversity is responsible for increasing the chances of survival of a species. It helps in…

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: Your father received 23 chromosomes from his mother and 23 chromosomes from his father. How many of…

A: As per the guidelines we are entitled to do one question at a time. So, I am providing a solution…

Q: Sister chromatids separate during anaphase of which of thefollowing?a. mitosis c. meiosis IIb.…

A: The cell is the basic structural and functional unit of the body. It is responsible for various…

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: Humans with aneuploidy who survive usually have incorrect numbersof chromosome 13, 18, or 21 or the…

A: Aneuploidy involves the addition or deletion of one or more chromosomes, which is a part of a genome…

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: The stage of meiosis in which chromosomes pair and cross over is: a. prophase I b. metaphase I c.…

A: Meiosis is a kind of cell division that creates four gamete cells by halving the number of…

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: In what phase of meiosis would you find no chromatids? Group of answer choices   A. telophase 2 B.…

A: The process by which the parent cell divides  and produce daughter cells is known as cell division.…

Q: During meiosis...   A. Only sister chromatids come together before segregating to different…

A: Meiosis is a type of reduction division in which the chromosome number is reduced to half and the…

Q: Which of the following is a FALSE statement regarding human chromosomes?   A. The chromosome…

A: Introduction :- Chromosomes are threadlike structures made up of protein and a single molecule of…

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: In meiosis, DNA replicates during a. prophase I. b. both prophase I and prophase II. c. prophase…

A: Introduction:- Meiosis is the divison occuring during gamete production.This is also known as…

Q: Same pair of chromose that carries an identical genetic information as other a.  haploid chromosome…

A: Chromosomes are the highly condensed form of DNA and proteins which contains gene that can be…

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…

Q: tHomologous Chromoso C. Area on a chromosome where a gene is found: genes d. Shows two different…

A: Gametes are reproductive cells that are produced through the meiotic division process. In this…

Q: Eukaryotic chromosomes a. have only histones b. have DNA and RNA c. have DNA, RNA, and protein d.…

A: There are different macromolecules present in the body. Carbohydrates, lipids, proteins, and nucleic…

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.