In spinach 2n=12, how many different chromosomal combinations can be produced in spinach gametes during meiosis from independent assortment of chromosomes only
Q: 2 1. 2 2 1 1 1 2 2 1 1 2 2. 3. 2. 2.
A: Reciprocal translocation is a process of swapping segments of chromosomes between homologous…
Q: four gametes are produced from a single meiotic division. The number of chromosomes present in…
A: Genetic linkage is a study that identifies genes or alleles on a single chromosome that are near to…
Q: A diploid fruit fly has 8 chromosomes. Which of the following terms should not be used to describe a…
A: DNA is packed with the help of histone proteins. Both DNA and histone proteins together form…
Q: Genes A and B are on different chromosomes. A dihybrid with the genotype AaBb undergoes meiosis.…
A: Genotype is the genetic makeup of and individual which determines the phenotype of an individual. In…
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: An inversion heterozygote has the following inverted chromosome. (A diploid is represented in each…
A: PERICENTRIC INVERSIONS PERICENTRIC INVERSION includes the centromere. After the chromatid…
Q: What is happening during this phase of meiosis? A.)Mitosis is complete and 4 diploid daughter cells…
A: Meiosis is a type of cell division which occur in germ cells to produce the gametes, such as sperm…
Q: th nearly terminal centromeres; * O A. Group A O B. Group B O C. Group C O D. Group D ere is only…
A: Three kinds of middle-sized chromosomes with terminal centromeres make up Group D (CI = 17-18…
Q: Describe one way that the events of prophase I vary from those of prophase ll during meiosis.…
A: Cell is the smallest structural and, functional unit of life. It is simple machinery that houses all…
Q: When do homologous chromosomes pair? Select all that apply. A.) During meiosis I B.) During…
A: Homologous chromosomes refer to a pair of chromosomes having the same gene sequences, each derived…
Q: Shown below are photomicrographs of Rhoeo tradescantia cells undergoing meiosis. Answer the…
A: Introduction A Micrograph, Also Known As A Photomicrograph, Is A Photograph Or Digital Image That…
Q: Crossing over.... a. leads to the exchange of material between homologous chromosomes in meiosis.…
A: Crossing over occurs in the pachytene stage of meiosis 1. Recombination of genes occurs because of…
Q: In a particular dihybrid (T/t, B/b) the alleles of the "T and "B"genes indicated in the figure below…
A: Meiosis is a process where a single cell divides twice to produce four cells containing half the…
Q: In an organism with a haploid number of 7, how many possible combinations of maternal and paternal…
A: According to law to independent assortment :- Homologous chromosomes get arbitrarily mixed during…
Q: in the expermient of following chromosomal dna movement through meiosis, how many chromosomes were…
A: Meiosis is a process where a single cell divides twice to produce four cells containing half the…
Q: At the end of meiosis in humans, four gametes are produced that are: A. Genetically identical to…
A: Meiosis is a two-step cell division process that helps to produce sex cells or gametes. This is a…
Q: When a nondisjunction event occurs only during meiosis I, the gametes will be
A: There are 46 chromosomes in a cell. 44 chromosomes are autosomes whereas 2 chromosomes are sex…
Q: Sketch a comparison of Metaphase Mitosis and Metaphase I Meiosis (diploid:8 chromosomes n=4) - Be…
A: Metaphase is a stage during the process of cell division (mitosis or meiosis) where all the genetic…
Q: Non disjunction occurs when chromosomes fail to separate during meiosis, resulting in an abnormal…
A: Mitosis and meiosis are the two types of cell division that occur during M phase of cell cycle. M…
Q: Shown below are photomicrographs of Rhoeo tradescantia cells undergoing meiosis. Answer the…
A: Introduction Mitosis is the division of replicated chromosomes into two new nuclei during the cell…
Q: pid plant is heterozygous for two genes on the same chromosome, A and B. overs between the two genes…
A: There is the occurrence of possibility of two types of gametes when two genes are present on the…
Q: n 3 a. Draw the structure of the acentromeric chromosome using a line and letters to designate loci…
A: Inversion is one type of chromosome aberration where the chromosome segment is excised and…
Q: A mature female tiger, with 38 diploid chromosomes in each somatic cell, produces haploid oocytes…
A: Chromosomes are present inside the cell nucleus and made up of DNA (Deoxyribonucleic acid) molecules…
Q: Consider a diploid cell from an unknown organism that undergoes meiosis. The four gametes produced…
A: Inactivation of topoisomerase II, separase, or condensin causes 'nondisjunction". Separase breaks…
Q: A diploid organism produces four gametes from one parent cell through the process of meiosis. Two…
A: Meiosis is made up of two cell divisions occurring in succession in sexually producing organisms and…
Q: The most notable differences between gamete formation in most animals and gamete formation in plants…
A: Sexual reproduction is considered a type of reproduction, where the new organisms are created by the…
Q: Salient similarities are found in cell divisions. For instance, which phase of meiosis I is most…
A: Cell division is a phenomenon in which parent cell undergo splitting process and gives rise to novel…
Q: If a diploid organism has 14 chromosomes (2n=14) a. How many chromosomes will its gametes have?…
A: Introduction: Meiosis is type of cell division which results into the four daughter cells each…
Q: Two chromosomes have the following orders for their genes:Normal: A B C centromere D E F G H…
A: In eukaryotic cells, chromosomal variations are two types such as chromosomal numerical variations…
Q: In which phase of meiosis does crossing over occur? Group of answer choices A. prophase I B.…
A: Meiosis A type of cell cycle which only takes place in the reproductive cell. By meiosis gametes…
Q: If a diploid cell contains six chromosomes (i.e., three per set), how many possible random…
A: Meiosis is a reductional division which is responsible for producing four haploid daughter cells…
Q: In the diagram above, Process X depicts meiosis I and Process Y depicts mitosis. One of the…
A: Given In the diagram above, Process X depicts meiosis I and Process Y depicts mitosis. One of the…
Q: Seedless watermelons that you find in the supermarketare triploids, where x = 11.a. At what…
A: Genetics is a branch of science that deals in the study of genes, heredity, and genetic variation of…
Q: The diploid chromosome number for a species is 30. What would be the total chromosome number of an…
A: It is given that the diploid chromosomal number is 30. That means 2n = 30 Diploid is having two same…
Q: A diploid (2n) trihybrid individual with the genotype AaBbDd can make eight genetically different…
A: Meiosis is the process of cell division, which takes place in higher organisms that reproduce by…
Q: During which stage(s) of meiosis do you expect to find tetrads? Select one: a. Prophase I and…
A: It is a process where a single cell divides to produce four cells containing half the original…
Q: Consider a diploid cell from an unknown organism that undergoes meiosis. The four gametes produced…
A: Non-disjunction It refers to the event when chromosomes fail to separate correctly. This results in…
Q: . For the chromosomes shown in Figure , draw the chromatids that would result from a two-strand…
A: Chromosomes are long thread-like structures that carry coded genetic information in the form of DNA.…
Q: Mendel's Law of Independent Assortment states that: O the members of a pair of homologous…
A: The laws of inheritance which was proposed by Mendel is applicable to all the eukaryotic cells which…
Q: Koalas have 2n = 16 chromosomes. How many chromosomes do we find in: a. A trisomic b. A double…
A: As per our guidelines, we can answer only one question and three subparts of the same question. Here…
Q: Diploid vs. Haploid: Given n = 12 a. Diploid (2n) number? b. This organism has a total of how many…
A: Answer : A) : n = 12 Diploid = 2n , 2* 12 = 24 B) total number of chromoses is 24
Q: Below is a chromosome with arrows showing the breakpoints of an inversion. ABCDE F GH What would be…
A: DNA is a double stranded helical molecule that is made up of repeating nucleotides. Mutation is any…
Q: If a hypothetical cell (2n=4) undergoes normal meiosis I, but during meiosis II, nondisjunction…
A: Inherited problems can emerge when chromosomes carry on unusually during meiosis. Chromosome issues…
Q: In fruit flies, chromosomal crossing over does not occur in meiosis in males, whereas crossing over…
A: Crossing over can be defined as the exchange of genetic material between the non-sister chromatids…
Q: Assume that no crossing-over takes place. Sketch out cells that would be present in each of the…
A: Mendelian genetics According to Mendel there are two type of factor present on the same locus on a…
Q: If sisiter chromatids of one daughter cell from meiosis l failed to separate during meiosis ll, what…
A: The indirect process of cell division in which the chromosomes of parent cells divide once but…
Q: c. Draw a cell with n=2 during metaphase of meiosis I. Use two colors to show that crossing over and…
A: The meiosis is the cell division process that involves division of a diploid (2n) mother cell that…
Q: A diploid (2n) trihybrid individual with the genotype EeFfGg can make eight genetically different…
A: The organisms that reproduce by sexual reproduction methods have a second type of cell division…
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:
In spinach 2n=12, how many different chromosomal combinations can be produced in spinach gametes during meiosis from independent assortment of chromosomes only?
a
|
24 |
b
|
64 |
c
|
cannot determine from the information provided. |
d
|
144 |
e
|
48 |
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
- Assume that a meiotic-nondisjunction event causes trisomy 8 in a newborn. If two of the three copies of chromosome 8 are absolutely identical, at what point during meiosis did the nondisjunction event take place?A diploid (2n) trihybrid individual with the genotype EeFfGg can make eight genetically different gametes. Loci E/e and F/f are on chromosome 1 and locus G/g is on chromosome 2. Explain how a gamete containing the alleles e, f and g may be produced by meiosis. Refer specifically to meiotic events occurring during Prophase I, Metaphase I, Anaphase I and Anaphase II. (NB: remember to refer to the organism above).During metaphase I of meiosis, tetrads align along the metaphase plate independently of each other. Therefore, there is a random “shuffle” of maternal and paternal chromosomes in the resulting gametes.The following diagram demonstrates how this works in a diploid cell with four chromosomes (2n=4) . Because there are two pairs of chromosomes and each pair can align in one of two ways during metaphase I, the number of possible variations in the gametes produced is 22 or 4.For an organism that is , there are three pairs of chromosomes, so the number of possible variations in the gametes produced due to independent assortment in metaphase I is 23 or 8. In an organism with a haploid number of 7, how many possible combinations of maternal and paternal chromosomes can occur in its gametes? a. 72=49 b. 27=128 c.17=1 d. 214=16 384
- During metaphase I of meiosis, tetrads align along the metaphase plate independently of each other. Therefore, there is a random “shuffle” of maternal and paternal chromosomes in the resulting gametes.The following diagram demonstrates how this works in a diploid cell with four chromosomes . Because there are two pairs of chromosomes and each pair can align in one of two ways during metaphase I, the number of possible variations in the gametes produced is , or .For an organism that is , there are three pairs of chromosomes, so the number of possible variations in the gametes produced due to independent assortment in metaphase I is , or . In an organism with a haploid number of , how many possible combinations of maternal and paternal chromosomes can occur in its gametes? Select one: a. 72=49 b. 27=128 c.17=1 d. 214=16 384An individual heterozygous for a reciprocal translocation possesses the following chromosomes: A B • C D E F G A B • C D V W X R S • T U E F G R S • T U V W X Q. Draw the pairing arrangement of these chromosomes in prophase I of meiosis.A certain species of animal has 18 chromosomes in its diploid cells (2n=18). Describe what the metaphase chromosome arrangement would look like for this species in each of the following stages: mitosis, meiosis I, and meiosis II
- Meiosis is characterized by the pairing of homologouschromosomes during prophase I. In many species, an elaboratestructure called the synaptonemal complex forms betweenhomologues. During this pairing, homologues may exchangechromosomal material at sites called chiasmata. In meiosis I, thehomologues separate from each other, reducing the chromosomenumber to the haploid state (thus the reductive division). It isfollowed by a second division without replication, during whichsister chromatids become separated. The result of meiosis I and IIis four haploid cells. If sister chromatids separated at the first division, would meiosis still work?An individual is heterozygous for a reciprocal translocation, with the following chromosomes: A • B C D E F A • B C V W X R ST • U D E F R ST • U V W X Q. Draw a picture of these chromosomes pairing in prophase I of meiosis.If the amount (mass) of DNA in a diploid cell during G1 phase prior to meiosis I is 8 pg (picograms), how much DNA would be present in a daughter cell immediately following: A) meiosis I? B) meiosis II? (for your information, this cell will function as a gamete) HINT: Go through the process of meiosis one step at a time. DNA replication would double the amount of DNA in the cell, cell division divides the DNA into two daughter cells.
- Shown below are photomicrographs of Rhoeo tradescantia cells undergoing meiosis. Answer the following question for each of the photomicrographs: Identify the cytogenetic abnormality observed (ex. ring, chain, laggard, bridge). Identify the meiotic stage in which these aberrations are observed (as shown in the photomicrograph). Explain how these aberrations are formed and relate to the possible causal mutation(s). Will this result to sterile and/or fertile gametes? Explain.For an organism with 3 pairs of chromosomes (6 total chromosomes, 2n = 6), draw chromosome diagrams for the following phases of meiosis: prophase I, metaphase I, anaphase I, telophase I, prophase II, metaphase II, anaphase II & telophase II. Be sure to draw the correct number of chromosomes and the correct number of chromatids per chromosome. Use a different color to represent each chromosome type (for example, use blue to indicate all copies of chromosome 1, red for all copies of chromosome 2, and green for all copies of chromosome 3).An individual heterozygous for a reciprocal translocation possesses the following chromosomes: A B • C D E F G A B • C D V W X R S • T U E F G R S • T U V W X Q. Diagram the alternate, adjacent-1, and adjacent-2 segregation patterns in anaphase I of meiosis.