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: What are the possible gametes contributed by the parental‘s in P1 cross?. ProgenyClass. And how do I…
A: Parental class gamete are produced in the offsprings which have exactly the same allele as possessed…
Q: why must sexually reproducing organisms use both processes of mitosis and meiosis, while asexually…
A: Mitosis is an equational cell division in which diploid parent cells give rise to two identical…
Q: You are investigating two temperature-sensitive mutant cells. In one, you can inactivate shugoshin…
A: Shugoshin inhibits chromatid separation during anaphase I by preventing separase degradation of…
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: What is diploid? Explain with the help of example?
A: Chromosomes are thread-like structures found in the nucleus of plant and animals. DNA is packed into…
Q: Why do diploid organisms that reproduce via sexual reproduction even bother with meiosis? What is…
A: Cell division Cell division is an important event in which the cell divides and increases in number.…
Q: What is the function of the fused kinetochore found on sister chromatids in prometaphase?
A: In prometaphase I of Meiosis I, the critical event is the attachment of the spindle fibre…
Q: Inspect this figure showing relations of parents and offspring in species with haplodiploid sex…
A: Relatedness value is the probability that two individuals share an allele due to recent common…
Q: Assume that extensive use of a certain drug leads to addiction and that children from matings…
A: In genetics, a cross is considered a purposeful mating of two individuals with appropriate traits…
Q: Which of the following correctly describes the gametes that will form as a result of nondisjunction…
A: When the non-disjunction occurs in Anaphase II of meiosis II process then this indicates that one…
Q: Butterflies have an X-Y sex-determination system that is different from that of flies or humans.…
A: -The butterfly shown has a completely unique pattern of colors because o a special trait- it has two…
Q: . Imagine that you have done a cross between twostrains of yeast, one of which has the genotype A B…
A: A genetic cross is defined as deliberately mating two individuals to create a desired genotype in…
Q: Can (1) chain and (2) ring structural abberations still lead to fertile gametes? explain
A: Abberations indicates the genetic material which should be DNA . The DNA transfer the information…
Q: What is haploid (n) ?
A: The gametes of an organism consist of half the chromosomes that are normally found in diploid body…
Q: . The numbers of chromosomes in the somatic cells ofseveral oat varieties (Avena species) are: sand…
A: Polyploid organisms contain more than two complete sets of chromosomes, x is the basic chromosome…
Q: Discuss the following sets of terms: a) trisomy and triploidy, b) aneuploidy and polyploidy.
A: In human cells normal number of chromosomes is 46.Abnormality in this number results in syndromes or…
Q: A species of cereal rye (Secale cereale) has a chromosome number of 14, while a species of Canadian…
A: The resultant offspring from interbreeding between two taxonomically distinct species of animal or…
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: Show via a diagram how the product(s) of a meiotic (either I or II) nondisjunction involving the X…
A: Kilnefelter's Syndrome: Klinefelter's syndrome is a genetic disorder in which a boy is born with an…
Q: Humans and many other complex organisms are diploid, possessing two sets of genes, one inherited…
A: Evolution is the process of development of an organism in such a manner that it has an advantage…
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: Will you observe fertile gametes if the following were observed cytologically? Explain briefly.
A: it happens with the acentric chromosome in this, there is no overlapping of the chromosome along the…
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: How will the offspring be affected if one of the gametes or one of the parents carries an impaired…
A: Any syndrome marked by deformities or malfunctions in any of the body's systems and caused by an…
Q: Bougainvillea, sunflower, and hibiscus, what is the form of inflorescence in these figures?
A: Inflorescence can be defined as the arrangement or flowers on the floral axis or it can also be…
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: Most eukaryotic organisms reproduce sexually, but a few eukaryotic organisms, like Bdelloid…
A: Parthenogenesis is a type of reproduction in which female egg develops into a embryo with out any…
Q: What is an allodiploid? What factor determines the fertility of anallodiploid? Why are…
A: Reproduction is the process of the formation of new offspring. The ability of an individual to…
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: Which statement best describes the diagrams shown? O Diagram A represents meiosis resulting with…
A: Diagram A represents mitosis resulting with genetically identical daughter cells. Diagram B…
Q: In humans, males are heterogametic and females are homogametic, Explain. Are there any examples…
A: Answer In humans the 23rd pair of chromosomes contains.
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: Chewbacca from Starwars is a part of a species that has 64 chromosomes for its diploid number. What…
A: Haploid is number of chromosome which is present in gametes .It is represented as n. Example :-…
Q: The primrose, Primula kewensis, has 36 chromosomes that are similar in appearance to the chromosomes…
A: One complete haploid set of chromosomes makes the genome.
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: An individual is heterozygous for a reciprocal translocation, with the following chromosomes: A • B…
A: Translocation is caused due to separation of a chromosome segment and its union to a non-homologous…
Q: In Drosophila, the genes for withered wings (whd), smooth abdomen (sm) and speck body (sp) are…
A: To calculate the expected number of double crossover, we have to use the product rule. The product…
Q: What are the non-random events that occur during sexual reproduction (post-meiosis) in humans?
A: Sexual reproduction is the combination of genes from both male and female parents leading to the…
Q: Species I has 2 n = 8 chromosomes and species II has 2 n = 14 chromosomes. What would the expected…
A: Any event that marks the change in the number of chromosomes is known as chromosome abnormality or…
Q: What will be the number of chromosomes in Turner’s syndrome and Klinefelter's syndrome of an…
A: Turner syndrome It is a chromosomal abnormality which affects only females. It is due to the absence…
Q: Which are the three tetrad types produced by meiosis of dihybrid yeast?
A: Meiosis is a type of reduction division where one cell divides to give ride to four daughter cells.
Q: For a haploid fungus, the starting point in the biosynthesis of the amino acid arginine is Compound…
A: Introduction :- Haploid fungus consists of single set of chromosomes . They synthesize amino acid…
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: Answer the following series of questions based on this karyotype obtained from a newly discovered…
A: A karyotype is a preparation of the entire set of metaphase chromosomes in the cells of a species or…
Consider a species of wasp in which females are diploid and come from fertilized eggs, while males are haploid and come from unfertilized eggs. Assuming that a queen mates with only one male, determine the coefficient of relationship (r) for each of the following.
a)A female (worker) to her sister:
b)A female (worker) to her brother:
c)A female (worker) to her father
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- In eukaryotic reproduction two haploid gametes fuse together to produce a diploid zygote which will grow into a new living organism with characteristics from both parents. true or false?Most eukaryotic organisms reproduce sexually, but a few eukaryotic organisms, like Bdelloid rotifers, reproduce asexually. Which of the following describes the difference between the formation of cells in sexually reproducing eukaryotes and asexually reproducing rotifers? A - Sexually reproducing eukaryotes proceed through one stage of meiosis to produce haploid cells, while Bdelloid rotifers proceed through two divisions to produce diploid cells. B= Sexually reproducing eukaryotes proceed through two stages of meiosis to produce haploid cells, while Bdelloid rotifers only need to proceed through one division to produce diploid cells. C- DNA is replicated and divided once in the production of haploid cells in Bdelloid rotifers, while DNA is replicated and divided twice in the production of diploid cells in sexually reproducing eukaryotes. D- DNA is replicated and divided twice in the production of diploid cells in Bdelloid rotifers, while DNA is replicated and divided once in the…A heterozygous diploid yeast Aa Bb went through meiosis. What percentage of the haploid spores will have recombinant combinations of alleles? What if genes A and B are unlinked? Explain What is genes A and B are linked? Explain
- You are investigating two temperature-sensitive mutant cells. In one, you can inactivate shugoshin activity by raising the temperature slightly at the start of meiosis. In the other, you can similarly inactivate separase activity by raising the temperature. How would the two cells be affected by inactivating these proteins?For an organism with haploid number of 15, fill in the following table:true or false, In meiosis, the haploid set of chromosomes is created in the reduction phase but they become single-stranded in the division phase?
- Consider and individual with 3 pairs of homologous chromosomes labeled as: A/a B/b D/d(where the slash line separates one chromosome from its homologues). How many differentmeiotic products (sperm or egg) can this individual produce? What are these?Why do diploid organisms that reproduce via sexual reproduction even bother with meiosis? What is the point of this complex and energetically expensive process?Which are the three tetrad types produced by meiosis of dihybrid yeast?
- What will be the number of chromosomes in Turner’s syndrome and Klinefelter's syndrome of an organism whose haploid number is 20What are the advantages and disadvantages of the alternation between fertilization and meiosis in sexually reproducing organism?The garden pea (Pisum sativum) is normally a diploid and has 7 chromosomes in one set (in other words, n = 7). Use this information to answer the following questions: a. How many centromeres would be in a cell of a tetraploid pea plant? ______ b. How many total chromatids would be in a cell of a tetraploid pea plant in metaphase of mitosis? _______ c. How many total chromosomes would be in a cell of a pea plant that is monosomic for a single chromosome?
