___________ chromosome aneuploidy is usually welltolerated because only one X chromosomeremains active and because the Y chromosomehas few genes
Q: For a hexaploid what is the value of x where x refers to the basic chromosomenumber that makes up a…
A: Ploidy refers to the number of chromosomes present in the nucleus of a cell. In normal somatic…
Q: to what do correspond respectively the grey, black and dotted lines? Indicate below the name of the…
A: Replication is the process by which the single mother strand helps to produce two daughter strands.…
Q: where is the chromosome abnormality? (chromosomes 1-23)
A: The chromosomal abnormality is the result of errors in the cell division following meiosis or…
Q: In humans, one set of chromosomes comes from the maternal parent, and the other set comes from the…
A: Answer: ALLELES are the alternate forms of gene. These are variant form of a gene.
Q: Barr bodies area. genetically active X chromosomes in males.b. genetically inactive X chromosomes in…
A: Darkly stained bodies which were observed in the G0 stage of nerve cells of female cats but not in…
Q: What phase of mitotic interphase is missing from meiotic interkinesis
A: The process in which duplication of the cell occurs and the resultant cell will be genetically the…
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: why Inversion loops form in inversionheterozygotes
A: Chromosome contains DNA which is a genetic material of an organism. The inversion is a condition in…
Q: Telophase II Chromosome number per daughter cell Chromosome composition per daughter cell
A: Meiosis is referred to as the reductional division of a cell. Sach a name is given to this division…
Q: A fertilized egg will develop into a boy if it receives a/n_____________chromosome from its father.
A: Ans: Fertilization: It is the process in which haploid gamets such as eggs and sperms are fused in…
Q: drawings of metaphase I,telophaseI, and telophase II for meiosis of AaBb. the genes are not linked,…
A: Metaphase I phase of meiosis is characterised by the alignment of chromosomes in the metaphase plate…
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: Chromosome abnormalities can be structural or numerical. Enumerate at least 3 examples of each,…
A: Numerical chromosomal abnormalities occur when there is a different number of chromosomes in the…
Q: Write the name of the term that describes the phrase. Possessing all of the normal number of…
A: Introduction Any cell contains the specific number of chromosomes and it is referred to as ploidy…
Q: normal somatic cells of an organism have 100 chromosomes. how many chromosomes will be present in…
A: Chromosomes are long thread like structures that carry coded genetic in the form of genes. This…
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A: There are two types of chromosomes found in our body, autosomes and allosomes. Autosomes are found…
Q: The human contains 23 pairs of homologous chromosomes, all of which are indepently assorted. What do…
A: During the process of meiosis, male and female gametes are formed. In meiosis, DNA is being…
Q: True or False: Every chromosome carries exactly the same information.
A: A chromosome contains all the genetic information. Most of the chromosomes present in the eukaryotic…
Q: Crossing over occurs mainly during this phase of meiosis: Prophase I Prophase II…
A: All living organisms are made up of cells. Animals like humans are made up of trillion of cells.…
Q: Crossing-over is all of the following EXCEPT
A: The exchange of genetic material between non-sister chromatids of homologous chromosomes is called…
Q: A person known to be born with one X-chromosome, zero or no known Y chromosome, trisomy 21, and…
A: Introduction Most of the organisms present on earth are diploid which means they contain two sets…
Q: Select the correct answer. Marcus is admitted to the hospital for a bone marrow stem cell transplant…
A: The cell division is the production of new daughter cells from the old mother cells. Usually in…
Q: Draw a pair of chromosomes as they would appear during synapsis in prophase I of meiosis in an…
A: In chromosomal duplication, some of the part of chromosome has been doubled up. In duplication, the…
Q: To determine: The size of the average human chromosome.
A: Eukaryotic and prokaryotic organisms are the two types of organisms. A chromosome is a particular…
Q: Number of Sex Phenotypic Sex of Probable Sex Total Number of Chromatin in Individual Chromosome…
A: Sex chromatin in somatic cells are Barr body, which are X chromatin or inactive X chromosome in a…
Q: Example Genotype: AaBbCcDd on one chromosome (in cis); EeFfGgHh on another chromosome (in cis)…
A: The chromosome pairs that are of approximately same length, have same centromere position, and have…
Q: Crossing over occurs during prophase Il of Meiosis.
A: Crossing over is essential for the normal segregation of chromosomes during meiosis. It is also…
Q: which are major mechanisms by whichchromosomal rearrangements take place
A: A chromosomal rearrangement is a mutation that is a type of chromosome abnormality involving a…
Q: Sex: Chromosomal anomaly: Syndrome:
A: The sex of the given karyotype is Male . As there are X and Y chromosomes.
Q: Assuming sexual reproduction and that no mutations have occurred. Please draw one possible genotype…
A: Genotype It is a description of our DNA's pair of alleles. The genotype of an offspring is…
Q: Chromosome All possible chromosome configurations at diakinesis Mutation number wwm Monosomy Trisomy…
A: Aneuploidy occurs due to loss or gain of one or more chromosome.
Q: Sex chromosome aneuploidy is usually welltolerated because only one X chromosomeremains __________…
A: Step 1 Aneuploidy is the numerical change in the chromosome number in the genome or genomes of an…
Q: When 23 pairs of human chromosomes are arranged in a diploid set, this layout is called a
A: A chromosome is a long DNA molecule with part or the entirety of the hereditary material of a…
Q: Abnoral changes in chromosome number are often from the failure of chromosomes to separate during…
A: Mitosis is the process by which cell divides into its daughter cells. It consists of karyokinesis…
Q: what is Rare mitotic nondisjunction
A: Mitosis - Mitosis is a process in which one cell divides to form two new daughter cells. These two…
Q: A diploid organism has five pairs of chromosomes in each somatic cell. Assuming that no crossing…
A: When the DNA molecule is well organized and packaged into thread-like structures in the nucleus of…
Q: To define the adavantage and disadvantage of a compact chromosomal structure.
A: Chromatin A mixture of protein and DNA together makes up the chromatin. This chromatin is a…
Q: Give biological term for a pair of corresponding chromosomes of the same size and shape , one from…
A: A chromosome is the thread-like structure made up of DNA. It is tightly packed in the nucleus of a…
Q: Down syndrome individuals carry an extra chromosome _________ in their cells.
A: Genes are the units (physical and functional) of heredity, made up of DNA or deoxyribonucleic. They…
Q: Indicate below the name of the chromosomal regions that are squared and named respectively A and B…
A: John Cairns was the first person to observe the replicating chromosome in E.Coli by autoradiography…
Q: What does each letter in the crossing over in meiosis represent? The picture below is the example of…
A: A homologous chromosome refers to a pair of chromosomes that are inherited from each parent. They…
Q: Indicate the Chromosome Numbers, (NB: indicate the letter to correspondence chromosome Number) B 人
A: Humans cell normally contains 23 pairs of chromosomes or total of 46 chromosomes. 22 pairs are…
Q: True or false after the first meiotic division the cells are haploid because they have only one…
A: Answer Meiosis - It is a nuclear division that occurs in the germ cells of sexually reproducing…
Q: Inspect Figure 3-8: which meiotic stage is responsiblefor generating Mendel’s second law?
A: Numerous cells constitute the body of an organism. Cells forms tissues and organs. There are a total…
Q: has the same number of chromosomes as the telophase nuclei in Figure 6.4. Explain the different…
A: Prophase is the first step in the cell division where the cell starts its processes required for the…
Q: Transmission of information from cells to cell or from parent to progeny that is not encoded in DNA.…
A: The DNA or deoxyribonucleic acid contain the genetic information that is transmitted from parents to…
Q: Down syndrome is: Trisomy of chromosome 12 Trisomy of chromosome 18 Trisomy of chromosome 13 O…
A: Note: Since you have asked multiple question, we will solve first question for you. To get remaining…
Q: Chromosomal Abnormalities Classification of abnormality Name of Number of Description Affected…
A: Hello, as you have posted question with multiple sub-parts, we will answer the first three…
Q: When there is one extra chromosome due to non- disjunction, it is called trisomy. In such a case,…
A: Answer is option b .) Y Chromosome
___________ chromosome aneuploidy is usually well
tolerated because only one X chromosome
remains active and because the Y chromosome
has few genes
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Solved in 2 steps
- Cucumis sativus (cucumber) is a diploid plant with 7 chromosome pairs. Determine the following as its cell divides by mitosis or meiosis: number of centromeres at Metaphase I _______________ number of univalents at Anaphase I (per pole) _______________ number of chromatids at Prophase _______________ chromosome number at Metaphase _______________ chromosome number at Telophase I (after cytokinesis) _______________Indicate the Chromosome Numbers, (NB: indicate the letter to correspondence chromosome Number) దా 8Chromosome inversion loops occur during meiosis in ______________ . chromosome duplications paracentric inversions reciprocal translocations both paracentric and pericentric inversions pericentric inversions
- Translocations ___________ Part of OneChromosome to Another ChromosomeIncluding the sex chromosomes, the chromosome number of a normal human cell is ___________ and the chromosome number of this HeLa cell is (look at picture). (Hint: Chromosome number is different from total chromosome count.)Match the letter of the term with its description. Centriole Chromosome Chromatid Diploid DNA Gene Haploid Description makes spindle fibers is the hereditary material in chromosomes a cell containing two complete sets of chromosomes a cell containing a single set of unpaired chromosomes code for a specific trait (e.g. ability to roll the tongue) one of a pair of identical chromosomes formed by the replication of a single chromosome any of several thread-like structures, made of chromatin
- Chromosomes undergoing recombination during meiosis Maternal chromosome 2 and paternal chromosome 3 Paternal chromosome 8 and maternal chromosome 9 Maternal chromosome 1 and paternal chromosome 1 Homologous chromosomes Nonhomologous chromosomesPage 1 of 1 USING TWO DIFFERENT COLORS TO SIGNIFY THE MATERNAL AND PATERNAL CHROMOSOMES, DRAW THE RESPECTIVE CELLS IN EACH LABELED PHASE OF MITOSIS AND MEIOSIS. THE CHROMOSOME NUMBER WILL BE "4" AND SHOULD BE REPRESENTED AS TWO HOMOLOGOUS PAIRS. MAKE SURE YOU USE TWO DIFFERENT SIZES FOR EACH OF THE PAIRS. BELOW EACH PHASE, BRIEFLY DESCRIBE WHAT HAPPENS. MITOSIS MEIOSIS I Crossing over needs to be illustrated in one of the homologous pairs and carried through the remaining drawings METAPHASE ANAPHASE METAPHASE I MEIOSIS II Accurate number of cells are needed ANAPHASE I METAPHASE II ANAPHASE IIChromosome structure is composed of the following Telomere Centromere Chromatids O All of the above
- 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).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 384Indicate the stage of meiosis (e.g., metaphase 2 = M2; prophase 1 = P1; anaphase 2 = A2; etc.) in which each of the following events occurs. first cell stage in which the original maternal/paternal chromatid doublets (chromosomes) are in separate cells chromosomes (chromatid doublets) first synapse (tetrads are visible) chromosomes (chromatid doublets, but NOT tetrads) line up in single file one doublet next to the other crossing over and recombination occurschromatid doublets move toward opposite poles of cellchromosomes (DNA) replicatechromatids separate as centromeres dividechromosomes (chromatid doublets) line up as tetrads at the cell’s equator