Crossing-over occurs between O Sister chromatids O Non-sister chromatids O Non-homologous chromosomes O None of these answers is correct

Q: Based on everything we have learned in this class we can confidently say that each sister chromatid…

A: Sister chromatids  These are two similar copies of the same chromosome that are formed by DNA…

Q: Which of the following statements regarding mitosis and meiosis is correct? O crossing over occurs…

A: Introduction: The process involving the division of a parent cell to give rise to two or more…

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: The segregation of chromosomes in cell division is a result of O the random way each pair of…

A: Meiosis is a reduction and division. It is responsible for producing the gametes which are haploid…

Q: Interphase: chromosomes are unpaired Prophase: chromosomes and centromeres have replicated, but…

A: Based on the image below, briefly write two (2) conclusions from this process.

Q: Chromosomes number 1 through 22 are known as the: O strange sex chromosomes O boring O fun O…

A: DNA is the nucleic acids present in the organisms. DNA is the deoxy ribose nucleic acid in which…

Q: Homologous chromosomes O are present in most diploid cells

A: Homologous chromosomes are chromosome pairs inherited from each parent. They have corresponding DNA…

Q: at the end of normal mitosis, the daughter cells are: O haploid O diploid O homologues aneuploid

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

Q: During the G2 phase, the inhibition of protein synthesis prevents the cells from undergoing anaphase…

A: Mitosis

Q: After telophase Il of meiosis, the chromosomal makeup of each daughter cell is: Practin O diploid,…

A: Meiosis cell division is the reductional cell division because the chromosome number in the daughter…

Q: 1. only occur(s) in the gonads to produce gametes. Mitosis Meiosis Mitosis and meiosis o Sporogony o…

A: 1. Meiosis only occurs in the gonads to that produces gametes. 2. Mitosis is not used for production…

Q: Chromosomes align at metaphase plate equidistantly from the opposite pole to avoid unequal…

A: Metaphase  It is the fourth stage of the division of the cell. It is the stage in which the…

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: Which event occurs only during prophase I of the first meiotic division? a. Replication of DNA takes…

A: Meiosis is a kind of cell division which is referred to as reductional division. Sach a name is…

Q: During Prophase I, the homologous chromosomes formed a synaptonemal complex. diplotene O pachytene o…

A: Meiosis is a type of cell division that occur in our reproductive cells.  The main purpose of…

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: Autosomes represent O all chromosomes other than sex chromosomes (XX, Xy) O all chromosomes…

A: We have different types of chromosome in the body . Each chromosome have genes for specific…

Q: Human cells have 23 pairs of chromosomes of which 22 are autosomal and homologous. One pair, the sex…

A: The chromosome is a threadlike structure, which is made up of DNA and protein and carry genetic…

Q: Somatic cells of chimpanzees contain 48 chromosomes.How many chromatids and chromosomes are present…

A: Hello there! As you have posted multiple questions, we are answering only the first part of the…

Q: Throughout mitosis, sister chromatids are identical, but sister chromatids are not identical to each…

A: The cell is the basic fundamental unit of life. Cell design is the method through, which a parent…

Q: Which of the foll owing characteristi cs about homologous chromosomes in somatic cells is false? O…

A: Option 1 is the correct answer as alleles can be different.

Q: A cell in G1 of interphase has 12 chromosomes (2 n = 12). How many chromosomes and DNA molecules…

A: Cell is the smallest structural and, functional unit of life. It is simple machinery that houses all…

Q: Meiosis generates genetic variation by: O chromosome replication during the S phase O all of the…

A: It's a type of cell division in which a single cell divides twice, resulting in four daughter cells…

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: To visualize and identify meiotic cells at metaphase I with a microscope, what would you look for? O…

A: Answer : Option "D" are correct - pairs of homologous chromosomes all aligned at the cell's center

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: CROSSING OVER UU Compare the homologous chromosomes to the Meiosis II chromatids they become at the…

A: Crossing over refers to the exchange of genetic material in the germ line. During meiosis, the…

Q: In a cell at _______________, each chromosome consists of a pair of attached chromatids. (a) mitotic…

A: The cell cycle in eukaryotes has four phases: G1, S, G2, and M. The S, or synthesis phase, is when…

Q: DA At Meiosis I sister chromatid cohesion is lost along the length of the entire chromosome to allow…

A: During the synthesis phase (S phase) of the cell cycle, chromosomes are duplicated while in the…

Q: Which of the following is a major difference between mitosis and meiosis II? O a) DNA replication…

A: Mitosis: Mitosis is a process of cell division that occurs in somatic cells. As a result of mitosis…

Q: Sister chromatids. are attached at the centromere prior to division O a. O b. All of the answers are…

A: BASIC INFORMATION  CELL DIVISION  It is necessary for all the cells. In this the parent cell…

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

A: Meiosis  It a type of cell cycle where the number of chromosome reduced to their original value.

Q: During mitosis, both new daughter cells receive different sets of biological information, so no two…

A: The cell is the basic unit of an organism. The division of cell occurs in order to produce new…

Q: The centromere is a region in which O a. The chromosomes are connected to the cell plate in…

A: A chromosome are condensed chromatin and thick specialised structures present in nucleus of a cell.…

Q: What is the corect order of these meiotic events? A Segregation of homologous chromosomes to…

A: The indirect process of cell division in which the chromosome of parent cell divide once, but…

Q: A somatic cell has the genotype DdEe. All chromosomes in this organism are metacentric. Show…

A: A metacentric chromosome has the same length of chromosome arms on either side of the centromere.…

Q: .Eukaryotic cells must sort their chromosomes during mitosis sothat each daughter cell receives the…

A: The process that allows a single cell to produce two similar cells or daughter cells is called…

Q: During Prophase I, the homologous chromosomes formed a synaptonemal complex. O zygotene leptotene O…

A: Parent cell generally divides into daughter cells by one of the two methods - mitosis or meiosis…

Q: A diploid nucleus at early mitotic prophase has __________ set(s) of chromosomes; a diploid nucleus…

A:

Q: The main function of Non-kinetochore microtubules is to Select one: O a. Elongate the dividing cell…

A: The polymers which are tend to align with the kinetochores and separate chromosomes are known as…

Q: Which statement is true regarding meiosis in cells? O In anaphase I, sister chromatids are pulled…

A: During telophase I chromosomes are enclosed in nucleic. Then cell undergo cytokinesis and divides…

Q: What is the mechanism of generating aneuploiding A) Mitotic unequal segregation of…

A: Aneuploids are the individuals whose chromosome number is not a multiple of the haploid number (n).…

Q: Meiosis creates cells With. O twice the number of chromosomes compared to the parent cell O the same…

A: Answer- Meiosis is called as reductional division in which the diploid cell undergoes division to…

Q: If a diploid cell contains six chromosomes (i.e., three per set), howmany possible random…

A: The term diploid refers to the status of ploidy level in the cells of an organism. Ploidy is defined…

Q: In a diploid cell, two homologous chromosomes are: A) similar , but from two different species B)…

A: A cell with two complete sets of chromosomes is known as a diploid cell. This is the haploid…

Q: Which of the following occurs in meiosis but not in mitosis? Practir O alignment of chromosomes at…

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

Q: Did I choose the right one?

A: Answer-

Q: The homologous chromosomes separate and are pulled toward opposite poles during Select one: O a.…

A: Meosis is the cell division which is also termed as reductional division because the division…

Q: The normal human skin cell has Select one: O a. 23 pairs of autosomes O b. 46 autosomes O c. 22…

A: Chromosomes are the condensed and coiled structures that occurs inside the nucleus of the cell of…

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.