17- Klinefelter syndrome in humans, which leads to underdeveloped testes and sterility, is caused by which chromosomal condition? а) 45, X b) 47, XYY C) O 47, XXY d) triploidy e) 47, 21+

Q: Explain why a triploid individual is usually infertile?

A: The individual having three sets of haploid chromosomes (3n) is termed as triploid. Triploid…

Q: What does o Cell that contains the transgene must have the ability to develop into gametes mean for…

A: Cell is the smallest structural and, functional unit of life. It is simple machinery that houses all…

Q: What are telophase 1?

A: Meiosis can be divided into two divisions as a) Meiosis I b) Meiosis II.  As mitosis, the cell is…

Q: what part of interphase II is crucial in meiosis for the producttion of haploid cells?

A: During the formation of haploid cells or gametes, the process of meiosis occurs twice (Meiosis I and…

Q: How much  is the weight of  1 copy of the human haploid genome  ?

A: The genome of an organism refers to the hereditary information, which is encoded in the DNA of the…

Q: 3. A series of dihybrid test crosses gives the following crossover frequencies of 5genes located on…

A: Linkage is a phenomenon in which genes are exhibited on the similar chromosome . While , genes that…

Q: In the absence of SPO11, what meiotic events will be affected during early prophase I?

A: Spo11 protein encoded by gene Spo11 plays an important role in creating double-stranded breaks and…

Q: In polyploid organisms, what does x refers to .?

A: Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each…

Q: If a dog cell (2n = 78) enters meiosis, how many chromosomes will be present in each daughter cell…

A: In Meiosis process , two divisions are involved that are Meiosis 1 and Meiosis 2.

Q: What does post covid syndrome mean?

A: Covid 19, or coronavirus disease which was discovered in 2019 in the Wuhan district in china. From…

Q: What is cross-fertilize?

A: Fertilization is the process by which the gametes (male gamete and female gamete) fuse with each…

Q: What are Extrachromosomal elements?

A: Chromosomes are thread-like structure, which are composed of deoxyribonucleic acid (DNA) and…

Q: A diploid organism is heterozygous for 4loci,how many types of gamete can be produced?

A: 'Locus' is a term which is used to denote the fixed position of a gene on the chromosome. A gene…

Q: What disease is Trisomy 15?

A: Disease:   When an organism’s body system does not work properly or any organ affects by viruses,…

Q: What unusual feature of the Y chromosome allows some recombination among the genes found on it?

A: Every individual has 23 pairs of chromosomes, out of which 22 are identical, one ie sex chromosome…

Q: 18. ХXY a. Which of the following terms describes the process of homologous chromosomes failing to…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Name and describe two birth defects resulting from nondisjunction of autosomes and two from…

A: Nondisjunction of chromosomes:- Non disjunction means failure of the paired chromosomes to separate…

Q: Which of the following correctly describes the gametes that will form as a result of nondisjunction…

A: Meiosis is a reductional division. It reduces the chromosome number to half.

Q: How is it that some chromosomal abnormalities are incompatible with life as early as immediately…

A: Chromosomal abnormalities are one of the reasons of miscarriage and stillbirth and spontaneous…

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: 1. How many daughter cells will be produced if there are 20 mother cells which will undergo meiosis…

A: Gametogenesis is a process through which male and female gametes (sperms and eggs) are formed in the…

Q: Why is an X chromosome needed for survival?

A: The sex chromosomes or allosomes are X and Y chromosomes which determine the biological sex of an…

Q: Why is fragile X, but not Huntington disease, considered a syndrome?

A: Fragile X syndrome causes various symptoms including developmental delays, cognitive impairment, and…

Q: 2. Generate the two resulting recombinant chromatids that result from the crossover events that must…

A: DNA is the store house of genetic material. The filamentous DNA condensed to form chromatids, which…

Q: _1. How many daughter cells will be produced if there are 20 mother cells which will undergo meiosis…

A: Gametogenesis is a process through which male and female gametes (sperms and eggs) are formed in the…

Q: How do we know that human aneuploidy for each of the 22 autosomes occurs at conception, even though…

A: Developmental biology is the branch of biology in which the development of the organisms from the…

Q: 22. Identify the stage of meiosis. Why is this stage critical to human development?

A: The cell is the basic structural and functional unit of the body. The chromosomal theory of…

Q: What is meant by the term diploid? Which cells of the humanbody are diploid, and which cells are…

A: The ploidy term refers to the number of sets of the chromosomes. The euploidy refers to the…

Q: What are meiosis1 with example?

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

Q: Within the sperm and egg cells of a frog, there are 13 chromosomes.  What would be the diploid #?

A: A frog gamete has 13 chromosomes.

Q: name the Extrachromosomal elements?

A: Chromosomes are thread-like structure, which are composed of deoxyribonucleic acid (DNA) and…

Q: How does the random alignment of homologous chromosomes during metaphase I contribute to the…

A: MEIOSIS - It is defined as a process where two ( diploid ) parent cells gives rise to four daughter…

Q: If m-m- females produce useless eggs, then how are m-m- produced?

A: Sexual reproduction refers to the form of reproduction that occurs through the union of male and…

Q: How mang sister chromatids are found in a single human cell undergoing Prophase II of Meiosis?

A: Meiosis is a reduction division. Number of chromosomes gets reduced by half in daughter cells.…

Q: what is length of chromosome11 ?

A: Chromosomes are long thread-like structures that carry coded genetic information in the form of DNA.…

Q: Why does a single X chromosome cause infertility and other abnormalities in Turner Syndrome…

A: Turner syndrome (TS) is a genetic disorder that mostly affects females. The clinical features of…

Q: What is Generation X?

A: Definition: -Generation X is defined as a collective term used to refer to all the Americans born in…

Q: whar are the meiotic events that could lead to the birth of an individual with either Patau syndrome…

A: The meiotic events causing Patau syndrome, or Turner syndrome in an individual. Introduction: Patau…

Q: How many polar bodies will be produced by 32 primary oocytes considering that their meiosis II is…

A: Gametogenesis is the process of formation of haploid gametes from undifferentiated diploid germ…

Q: What is a sex pilus and which cell type, F- or F+,would produce this structure?

A: The transfer of the genetic material from one bacterium to another through direct contact is termed…

Q: What is chromosomal formation called? 2b. When specifically was it formed? 3c. Would it be found…

A: * chromosomes are the structures found in nucleus of cells with long pieces of DNA. *DNA holds genes…

Q: Name the sex chromosomes in human males and females.

A: Chromosome theory of sex determination or sex chromosome mechanism was discovered by EB Wilson and…

Q: What the term Translocation defines in the context of chromosomal ?

A: A chromosome is a lengthy DNA molecule that contains all or parts of an organism's genetic material.…

Q: Are human gametes haploid or diploid? Are human somatic cells haploid or diploid? Are fertilized…

A: Ploidy refers to the total number of chromosome sets present in the cell of an organism.

Q: What is the divisome?

A: DIVISOME--Definition--It is defined as a complex proteins molecule in bacteria that is responsible…

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 the Y Chromosome ?

A: A chromosome is a lengthy DNA molecule that contains all or parts of an organism's genetic material.…

Q: identify two main themes underlying the phenomena of chromosomal changes?

A: Chromosome is a compact structure of a DNA molecule wrapped around some proteins. It is generally…