Q: What are called aneuploidy?
A: Nondisjunction is the failure of sister chromatids or homologous chromosomes to separate properly…
Q: What is the role of monoadelphous,diadelphous,polyadelphous?
A: A flower is a modified shoot which is responsible for the sexual reproduction in angiosperms. In a…
Q: If a chimpanzee has a haploid (N) chromosome number of 24, how many chromosomes will be found in…
A: A chimpanzee has 24 pairs of chromosomes in diploid condition and haploid cells such as gametes…
Q: What is a homologous pair (also called a tetrad)?
A: The chromatid is the newly synthesized copy of the original chromosome that is attached to it with…
Q: Distinguish the following: euploidy, aneuploidy, and polyploidy; monosomy and trisomy.
A: Nondisjunction of chromosomes occurs happens during anaphase, when a pair of homologous chromosomes…
Q: For a species with a diploid number of 36, indicate how many chromosomes will be present in the…
A: Haploid: Having only one set of chromosomes, i.e, n-chromosomes. Triploid, Tetraploid is a condition…
Q: For an organism with haploid number of 15, fill in the following table:
A: Haploid cells Haploid cells have only one set of chromosomes. Most of organism produce haploid…
Q: Why are triploid plants infertile?
A: The plants with three sets of chromosomes called triploid (3n) plants. These plants morphologically…
Q: Explain the terms: (a) aneuploidy, (b) polyploidy.
A: The term ploidy refers to the total number of chromosomes. Several mechanisms take place to…
Q: What is the difference between Euploidy and polyploidy?
A: Chromosome may be defined as the condense form of DNA that can be inherited from one generation to…
Q: What genetic principle could be derived from a monohybrid cross?
A: The genetics is the branch of biology that deals with the study of genes, genetic variation and…
Q: How many chromosomes would be found in somatic cells of an allotetraploid plant if its parent…
A: 10 Chromosomes.
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: Inversions are known to affect crossing-over. The following homologs have the indicated order (the…
A: It is paracentric inversion. The diagram below show the replication during meiosis
Q: How would you make a monoploid plantlet by starting with a diploid plant?
A: A Monoploid is an individual with one set of chromosomes and an individual with two set…
Q: What is the difference between autopolyploidy and allopolyploidy? How does each arise?
A: The two types of polyploidy are autopolyploidy and allopolyploidy. The polyploidy occurs as the…
Q: Consider the following DNA molecule (shown in the picture) and assume this is the DNA sequence of…
A: Amino acid sequence formed from the 5'to 3' end is tta atc gtc tac gta cta cgt taa tga tcg…
Q: What is haploid (n) ?
A: The gametes of an organism consist of half the chromosomes that are normally found in diploid body…
Q: Why are inversions and reciprocal translocations less likely to belethal than are aneuploidy,…
A: Every living species have two types of cells, somatic cells (diploid) which are responsible for…
Q: trawberries are octoploid. Bananas are triploid. Kiwi fruits are diploid. How does ploidy level…
A: Ploidy level is directly related to the amount of DNA present inside the cell or Ploidy is a term…
Q: . What is aneuploidy? Differentiate between aneuploidy and polyploid
A: Aneuploidy Aneuploids differ from standard 2n chromosome complements in single chromosomes. These…
Q: What causes Tetraploidy?
A: Tetraploidy is a particularly rare chromosomal aberration, polyploidy, when an affected individual…
Q: The numbers of chromosomes in the somatic cells of several oat varieties are sand oats: 14; slender…
A: Answer. Oats are Avena plant species and belong to the grass family. a). The basic chromosome number…
Q: What are multiples allels?
A: Gregor Mendel knew how to keep things basic. In Mendel's work on pea plants, every gene came in only…
Q: Give the chromosome number for the following: 1. 2n=4 treated with colchicine to produce an…
A: Every organisms have different chromosomes number. In human chromosome number is 46 , it is varies…
Q: What DNA sequence feature is required for a G-quadruplex to form?
A: G-quadruplex formed are formed in telomeric sequences which are highly polymorphic. A four repeat…
Q: For a species with a diploid number of 18, indicate how many chromosomes will be present in the…
A: A compactly packed structure composed of proteins and nucleic acids is the chromosome. A network of…
Q: what are aneuploids?
A: Chromosome is the tread-like appearance of the nucleic acids and protein molecules present in the…
Q: The following diagram represents a tetrad in prophase I. Each line (1–4) represents a chromatid (DNA…
A: Crossing over occurs in prophase I - Pachytene.
Q: In terms of chromosome composition, are the two daughter cells in mitosis identical? Are they…
A: In terms of chromosome composition Mitosis creates two identical daughter cells and each contain the…
Q: Define aneuploidy.how is it different from polyploidy?
A: Chromosomes are thread-like structures that are located in the nucleus. It is composed of protein…
Q: Is a trisomic an aneuploid or a polyploid?
A: Trisomy is a genetic condition in which an extra chromosome or part of a chromosome is added to a…
Q: What is the key difference between autopolyploidy and allopolyploidy?
A: Ploidy refers to the number of chromosomes present in the nucleus of a cell. Polyploids are…
Q: Do phylogenetically proximal species have cells with proximal chromosome counts?
A: Phylogenetically proximal species are the species that close on the phylogenetic trees and had the…
Q: mosome constitution. When the seed parent was O. hookeri, the plastids of the progeny were yellow;…
A: There are certain traits that are not inherited by conventional means of nuclear information. It is…
Q: Compare the following three terms: polyploidy, aneuploidy, and nondisjunction. Briefly discuss…
A: Ploidy is basically the number of sets of homologous chromosomes of a cell or an organism. The cell…
Q: How does prohpahse in mitosis differ from prohpahse 1 in meiosis? What genetic advantage does…
A: Mitosis and meiosis are two different types of cell division process. Meiosis is reductional…
Q: An organism has a haploid number of 36. What is the organism diploid number ?
A: Ploidy is a term which describe the number of sets of chromosomes in a cell. The term haploid…
Q: In what way does the position of the heterozygous organism of two genetic loci on the same…
A: Crossing over puts new alleles together in combination on the same chromosome, causing them to go…
Q: hat cytological abnormalities are expected of aneuploids at mitosis? at meiosis?
A: cervical cytologic abnormalities in teenagers, outlined as a Papanicolaou (Pap) smear result…
Q: discuss briefly The genetics of triploidy
A: Triploidy is a rare chromosomal abnormality. It is the presence of an additional set of chromosomes…
Q: What is endopolyploidy? What is its biological significance?
A: Ploidy refers to the number of complete sets of chromosomes in a cell. One complete set of…
Q: The chromosome count of a cell at the beginning of prophase I is 12. What is the centromere count in…
A: Chromosomes are condensed form of DNA that contains our genetic material. In this question, we are…
Q: Common red clover, Trifolium pratense, is a diploidwith 14 chromosomes per somatic cell. What…
A: Trifolium pratense is the herbaceous species of the flowering plant. It belongs to the bean family…
Q: A diploid organism has a total of 14 chromosomes and about20,000 genes per haploid genome.…
A: Genetic linkage refers to the close association of genes chromosome that are located close to each…
Q: What is the name of the structure that holds homologous chromosomes together after they have paired…
A: A chromosome is a compact form of DNA molecule present in dividing cells. In metabolically active…
Q: What is an example of polyploidy?
A: The ploidy term refers the number of sets of the chromosomes. The euploidy refers to the chromosomal…
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- Compare an autotetraploid and an allotetraploid to each other with respect to the characteristics listed below. Answer auto, allo, both or neither for each statement. a) Balanced and unbalanced gametes can form.b) Contains 4 homologous copies of every chromosome.c) Originated from 2 different ancestral diploid species.d) Fully fertile.A diploid organism produces four gametes from one parent cell through the process of meiosis. Two gametes are found to have 7 chromosomes and two gametes are found to have 5 chromosomes. A) Is this the expected number of chromosomes that would be found in each gamete following a normal cycle of meiosis? If yes, explain why. If no, explain why not and describe how the gamete situation described above occurred. B) Determine the number of homologous chromosome pairs that the original parent cell contained, before meiosis began. Explain how you determined this value.Which of the following are differences between mitosis and meiosis I? CHOOSE ALL THAT APPLY. A) Crossing over occurs during meiosis I but not during mitosis B) DNA replication takes place prior to mitosis, but not before meiosis I C) Sister chromatids separate in mitosis, and homologs separate in meiosis I D) Only meiosis I results in daughter cells that contain identical genetic information E) Meiosis I results in two daughter cells, while mitosis results in four daughter cells
- Which of the following represents things that are equivelant? A) Two alleles for the same gene in a homologous chromosome pair B) The sequence of DNA in the two sister chromatids of a chromosome after meiosis 1 C) The number of homologous chromosomes per cell before and after meiosis 1 D) The number of chromosomes in each of the four daughter cells after meiosis 2Explain the terms: (a) aneuploidy, (b) polyploidy.Compare the following three terms: polyploidy, aneuploidy, and nondisjunction. Briefly discuss examples of each of these conditions.
- Use the diagram below to figure out how each monosomy or trisomy can a) Normal X chromosome segregation b) Nondisjunction in meiosis I c) Nondisjunction in meiosis II Diploid cell at start of meiosis Nondisjunction First meiotic division Second meiotic division Nondisjunction 00 00 00 PEARS N develop. Benjamin XCummixes х х х х XX XX о о XX 1. A color-blind man married a normal woman. Their daughter, who was phenotypically normal, married a normal man and the couple produced three children, a normal boy, a color-blind boy, and a color-blind girl with Turner syndrome. Explain the origin of the color-blind girl with Turner syndrome.If nondisjunction occurs in humans for one pair of homologous chromosomes during meiosis I. The other pairs segregate normally. a) Will any normal gametes result? b) How many chromosomes will each human gamete have? If nondisjunction occurs in humans for sister chromatids during meiosis II. The other pairs segregate normally. a) Will any normal gametes result? b) How many chromosomes will each human gamete have?E 0 Listen Match the image to the stage. Black is paternal, white is maternal ... < -19 Listen Meiosis 1 Meiosis 2 Mitosis G2 Sisters separate Spindle forms 1. Crossing Over Occurs 2. Chromosomes become less distinct, nuclear envelope reforms. Chromosomes Duplicate 3. First Cell Division Occurs lolH HH A single line of chromosomes appears in the middle of the cell 11 F Put the following in order in mitosis and the preceding interphase Hint: Determine whether the event occurs in G1, S, G2, prophase, metaphase, anaphase, telophase or cytokinesis first. Also draw the stages out. d b B d F d b Put the following steps in order during meiosis and the previous interphase. Hint: Determine which step (interphase, Meiosis 1 and Meiosis 2) they occur in and then which phase (prophase, metaphase, anaphase, telophase, cytokinesis). Also draw the stages out. B d
- Sketch a series of diagrams showing each of the following, making sure to end each series with haploid cells:(a) How a pair of alleles for a single locus segregate in meiosis(b) How the alleles of two unlinked loci assort independently in meiosis(c) How the alleles of two linked loci undergo genetic recombinationWhich of the following is true of polyploidy?A cell has a diploid number of 12 (2n=12)a) how many chromosomes are present in a daughter cell after meiosis I? b) how many chromatids are present in a daughter cell after meiosis I?c) how many chromosomes are present in a daughter cell after meiosis II? d) how many chromatids are present in a daughter cell after meiosis II? e) how many chromosomes are present in a daughter cell after mitosis?