Each of the drawings below shows a cell and its chromosomes in schematic form. Each one illustrates a different arrangement of sister chromatid pairs on the spindle at metaphase. Imagine that these cells come from a diploid organism who is heterozygous at two loci residing on separate chromosomes: A (with alleles A and a) and B (with alleles B and b). A U A U ALJAaja 1. F ALJA B E AWA Which of these drawings illustrate a normal chromosomal arrangement at metaphase of mitosis? Choose all that apply. ALJAal bbBB ILJA

Q: The genes below have been knocked out (loss of function). Draw what the cell would look like during…

A: A gene is a stretch of nucleotides present in the DNA. It codes for the synthesis of an RNA or…

Q: If a cell has five pairs of chromosomes, and if this cell undergoes cell division, the number of…

A: Meiosis is reductional division which is responsible for producing the gametes. These gametes are…

Q: Centrioles at opposite end of cell Spindle fibres attached to centromeres 46 double stranded…

A: Human cells diploid 2n have 46 chromosomes then they organized into 23 pairs. 22 autosomal and 1…

Q: An inversion heterozygote has the following inverted chromosome: Centromere A B CD JI HGF E KL M…

A: Introduction :  Inversions are rearrangements in chromosome genetic sequences wherein small regions…

Q: What structures are found in a chromosome? Group of answer choices Two structures for the mitotic…

A: structures  found in a chromosome :  Two structures for the mitotic spindle to bind, and one complex…

Q: The accompanying illustration shows one possible outcome of the random alignment of homologous…

A: Meiosis is a type of cell division in which a diploid mother cell divides into four genetically…

Q: Pretend that you are a famous scientist who has been awarded to study the duplication of chromosomes…

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

Q: Select one: OA A OB. B OC C Tissue Sample of Unknown Organism D. D d. In which of the cells labelled…

A: A cell divides into two daughter cells as a result of a sequence of events known as the cell cycle,…

Q: Required information 1Ab:1a B More A b and a B; and fewer A B and a b 1AB:1ab 1AB:1Ab:1 a B:1 ab…

A:

Q: 2n = 2 pairs of G1 → S→ G2 homologous -> -> chromosomes Skip prophase I, do not draw crossing over…

A: Step 1: The image shows the cell cycle and the phenomenon of non disjunction in the form of a…

Q: Draw the structure of the acentromeric chromosome using a line and letters to designate loci in…

A: Inversion is one type of chromosome aberration where the chromosome segment is excised and…

Q: O 3oooo A b B e S OO

A: The phases shown in the image are of interphase and the mitotic phase. Interphase consists of S, G1…

Q: For each of the terms in the left column, choose thebest matching phrase in the right column.a.…

A: Genetics is a branch of science that deals in the study of genes, heredity, and genetic variation of…

Q: in a diploid species, one somatic cell has8 chromatids before S phase. In this species,  2n=2? 2n=4?…

A: Introduction  When people talk about "cell division," they typically mean mitosis, which is the…

Q: from the image below). Which of the cells beneath it (cells A, B, C or D) could be a cell from an…

A: The process of mitosis occurs in somatic cell so it is known as somatic cell division. In mitotic…

Q: Consider the panels A-D in Figure 1. Which one panel illustrates the segregation of alleles on…

A: Meiosis is a reductional division. It leads to reduce the ploidy to half in daughter cell. It…

Q: Which of the following best explains why chromosomes 13, 18 and 21 are the only autosomes that are…

A: Trisomy is a genetic disorder in which a person has three copies of a particular chromosome instead…

Q: Which of the following facilitate chromosome separation during anaphase of mitosis? All of these…

A: Amaphase is the third stage of mitosis. In this stage the chromosome starts separating and moving…

Q: Please mathc the following So I can understand it    _   monosomy       trisomy…

A: 1. A duplicate chromosome is made up of -   Sister chromatid. 2) A maternal and paternal chromosome…

Q: According to the diagramming methods I use, answer the following questions for the cell below: n =…

A: The figure shows the diagram of a cell that contains 4 different sets of chromosomes. The cell is…

Q: Draw a chromosome and a pair of homologs (or homolog pairs, or homologous chromosomes). Label on the…

A: Chromosomes are made up of proteins and DNA molecules. At the time of cell division they divides so…

Q: Figure 1. Showing a homologous pair of chromosomes that carry two linked genes. Here we can see that…

A: Alleles are two forms of the gene. If two genes are linked, their independent assortment during…

Q: Centrioles at opposite end of cell Spindle fibres attached to centromeres 46 double stranded…

A: Metaphase - is the stage of cell cycle where condensation of chromosomes occurs. This is the stage…

Q: A diploid cell with three pairs of homologous chromosomes is shown on the left. Each letter…

A: Mitosis and meiosis are the two different types of cell division. Meiosis occurs in normal somatic…

Q: 11. One difference between cancer cells and normal cells is that cancer cells A) are unable to…

A: There are two types of cell division: meiosis and mitosis. Mitosis is the equational cell division,…

Q: In a haploid fungus, the genes al-2 and arg-6 are 30 m.u.apart on chromosome 1, and the genes lys-5…

A: Chromosomes These are the densely packed DNA structures with proteins.Multiple genes can be found on…

Q: a species that has a diploid number 2n = 10. Draw this cell as you would expect it to appear during…

A: * cell cycle meiosis consists of four stages Prophase  Metaphase Anaphase  Telophase * In prophase…

Q: Single base pair mutations at which of the following sites would severely disrupt the segregation of…

A: Option D

Q: Use the chromosome image, where the letters represent genes, to match the statements with their…

A: Crossing over is a process where the few segments of genes are exchanged between two homologous…

Q: Consult Figure 1, which shows a human karyotype with chromosomes arranged in order of decreasing…

A: Eukaryotes usually have their genetic material packed and condensed into chromosomes and stored…

Q: An autotetraploid plant has 96 chromosomes, 4N= 96. Which of the following scenarios could be…

A: 4n = 96 Univalent = 1 chromosome containing 2 chromatids Bivalent = 2 chromosomes (4 chromatids)…

Q: a B B A C B 7 B e y p The figure above shows images of five different cells. Each box contains an…

A: Mammals including humans show XY sex determination system in which the presence of Y-chromosome is…

Q: 1. Ten centromeres are observed in a prophase cell from a Sorghum bicolor plant. a. How many pairs…

A: The thread-like structure present in the nuclei of both animal and plant cells is chromosomes. It is…

Q: If the image represents a meiotic cell, what will happen to the DNA represented in Box 1 after…

A: Answer: MEIOSIS : It is the cell cycle occurs mostly in the germ line cells, where parent cells…

Q: ignore the different colours. How many chromosomes are shown in the figure? What is the ploidy of…

A: Ploidy refers to the number of complete sets of chromosomes present in the nucleus of a cell. So,…

Q: In mice, 2n = 40. If a mouse cell divides by mitosis, it will produce two daughter cells that each…

A: Mitosis and meiosis are the two types of cell divisions found in sexually reproducing organisms.…

Q: chromosome number of 6. Indicate maternally- & paternally-derived chromosomes as red and blue,…

A: Introduction of Meiosis -  is the process by which "gametes" (sex cells), with half the number of…

Oogenesis

The formation of the ovum (mature female gamete) from undifferentiated germ cells is called oogenesis. This process takes place in the ovaries (female gonads). Oogenesis consists of three stages known as the multiplication phase, growth phase, and maturation phase. 

Cell Division

Cell division involves the formation of new daughter cells from the parent cells. It is a part of the cell cycle that takes place in both prokaryotic and eukaryotic organisms. Cell division is required for three main reasons: