In eukaryotic species, sexual reproduction is the producer of genetic diversity. Describe three ways( and the stages they occur in) that Meosis and fertilization introduce new combinations of genes to organisms?

Q: Why are chromosomal aberrations considered to have less significance than gene mutations for…

A: Chromosomal aberration refers to the alterations in a number of chromosomes such as loss or gain of…

Q: If a mother snail is heterozygous, Dd, which gene products will the egg cell receive?

A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…

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: Does crossing over occur during prophase II? From an evolutionary perspective, why is this…

A: Chromosomes can be defined as the thread-like structures that is  located inside the nucleus of…

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: If a fertilized Drosophila egg is punctured at the anterior end and a small amount of cytoplasm is…

A: Egg polarity genes are the earliest activated genes, which decide the formation of main body axis;…

Q: Which are the principle that appears to have been built into the genome structure of all…

A: The complete set of the gene of a particular organism is called its genome.  It is a combination of…

Q: What are some of the major impediments to genetically modifying human embryos?

A: Genetic sequences of the organisms regulate their genetic traits.

Q: In a genomic comparison between humans and yeast, what geneswould you expect to be similar?

A: Saccharomyces cerevisiae  is otherwise called as bakers yeast. It is an eukaryotic organism with…

Q: What is the relationship between chromosomal theory of inheritance and reproduction and chromosome…

A: The chromosomal theory of inheritance was developed from the concept of chromosomal segregation and…

Q: An organism has a relatively large number of Hox genes in its genome. Which of the following is true…

A: Animals containing homeobox sequences are mentioned as hox genes. These hox genes are found in fruit…

Q: Why is polyploidy rare in some animals?

A: Polyploidy is a condition in organism where it has more than diploid number of chromosomes.…

Q: How can asexually reproducing organisms acquire new geneticinformation?

A: Reproduction can be defined as the process by organisms gives rise to new organisms. IT can be of…

Q: what process is important for creating genetic variability among organisms that reproduce primarily…

A: Given: Process that is important for creating genetic variability among organisms that reproduce…

Q: Why is sexual reproduction more efficient than asexual reproduction among animals?

A: Reproduction is a process of production of offsprings from parents cells. In reproduction the traits…

Q: What would the human life cycle be like if we have an alternation of generations? Assume that the…

A: In the sporophyte stage a diploid (contains two groups of chromosomes) plant body develops and…

Q: Several Drosophila species with unspotted wings are descended from a spotted ancestor. Would you…

A: Drosophila has a short, basic proliferation cycle. Organic product flies are little (3 mm long) yet…

Q: Why are variation possible in progeny of sexually reproduative individuals?

A: Genetic variation refers to differences in DNA sequence found between one individual and another…

Q: What are haploidentical paternal regions?

A: Haploidentical transplant is a type of allogeneic transplant. It is a half matched stem cell…

Q: Is the presence of large numbers of chromosomes in an organism a hindrance to sexual reproduction?

A: Even under a microscope, chromosomes are not visible with in nucleus of a cell that is not dividing.…

Q: Among different species, does extranuclear inheritance always follow a maternal inheritance pattern?…

A: Yes, extranuclear inheritance invariably is contributed by the mother. In many organisms, certain…

Q: If a mother snail is heterozygous, Dd, which gene products will the oocyte receive?

A: The mom's genotype specifically influences her offspring's phenotype Broken rule: gene expression an…

Q: Suppose that you wished to determine the number of pseudogenes related to a particular gene in an…

A: There will some steps which you should follow.

Q: Suppose you are analyzing the DNA from the polar bodies formed during human oogenesis. If the woman…

A: The process of the development of an oogonium into a mature ovum is termed oogenesis. It involves…

Q: Drosophila melanogaster has which four linkage groups?

A: The tendency of the genes to locate on the same chromosome, to stay together in the hereditary…

Q: how would the chromosomes content of the eye cell of a man compare with the chromosome content of…

A: Chromosomes are thread like structures that are the condensed form of DNA. They constitute the…

Q: Where are the two ends of a kinetochor  microtubule?

A: Mitosis:A process of cell division in the case of eukaryotes in which the nucleus is first split…

Q: If X inactivation compensates for an extra X chromosome, why do Klinefeltermales (XXY) have problems…

A: DNA is considered to be the genetic material within the nucleus that gets packed in thread-like…

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: Under what circumstances could nonhomologous endjoining be said to be error prone?

A: A gene is the essential physical and functional unit of heredity. They are comprised of DNA…

Q: Dolly was a sheep produced by cloning. Which of the following is a difference between Dolly and…

A: Reproduction (or multiplication or rearing) is the natural cycle by which new individual life forms…

Q: What characteristic property of translocations causesscientists to believe that these rearrangements…

A: The chromosomal translocation is a natural phenomenon in which a chromosomal segment is moved from…

Q: why do the embryos of different species resemble each other?

A: The embryo is an early stage of development in multicellular organism (from fertilization to start…

Q: (AKS 8a, DOK 1) Dolly was a sheep produced by cloning. Which of the following is a difference…

A: The cloned sheep dolly is produced by fusing the nucleus from mammary gland cell( of a Finn…

Q: Why are the chromosomes replicating? Why is this necessary for the embryo?

A: The fundamental importance of chromosomes is that they contain DNA, or deoxyribonucleic acid, the…

Q: Are mutations that arise during mitosis or meiosis the same?

A: The genetic material consists of a nucleotide sequence that results in the expression of the…

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

A: Ploidy refers to the number of sets of chromosomes that are present in a cell and hence determining…

Q: We are not single celled organisms and multiple cell divisions occur between fertilization and…

A: Introduction :- Gametogenesis as its name suggests , is the process of formation of mature gametes (…

Q: Because of the relatively high frequency of meiotic errors that lead to developmental abnormalities…

A: Introduction: Recombination frequency is defined as a number that explains the ratio of recombinant…

Q: If each sperm of Species X has 10 chromosomes, what are the numbers of chromosomes and complements…

A: The sperms are male gametes that are produced through the process of spermatogenesis in the…

Q: What is a clone? Why do offspring’s formed by asexual reproduction exhibitremarkable similarity?

A: Asexual reproduction involves only one parent (uniparental). In this type of reproduction the…

Q: What is a homolog? With regard to genes and alleles, how arehomologs similar to and different from…

A: Genes are the units of heredity that are transmitted through generations. Genes contain the genetic…

Q: Why do human germ cells (cells that undergo meiosis to produce gametes) express the enzyme…

A: Cell division is a process of a parent cell replicating it chromosomal content and dividing itself…

Evolutionary adaptations

Evolutionary adaptation is the process through which organisms adapt or adjust to their surroundings to increase the chances of survival, mating, and reproduction. An organism's behavior, physiology, and structure are adjusted or changed to make it more suited to its environment.