Discuss the phenomenon of polyploidy and explicitly demonstrate how it can contribute to the process of speciation.

Q: Which of these can induce phenotypic change to future generations of a population?

A: Answer :- Option (E) is correct. - The following are induce phenotypic change to future generations…

Q: Species 1 and 2 are sister species from which you’ve cloned related genes. On the gene tree on the…

A: The answers to the question are given below: (a) Node 2 labelled Gene duplication   (b) Node 1 and…

Q: What aspects of dna can be used to differentiate species?

A: DNA is the genetic material in all the living organisms.

Q: Sex Linkage is relevant to organisms with homogametic sexes.

A: When a gene mutation (allele) is found on a sex chromosome (allosome) rather than a non-sex…

Q: In the evolution of a new variant, explain the roles of genomic cytoplasmic gene factors, ecological…

A: In biology, the term evolution can be described as the change occurring in a biological population…

Q: What do you know about speciation ? write your opinion about its types ?

A: Evolution has resulted in the development of different types of animals, plants, and microbes on…

Q: Speciation

A:

Q: Species I has 2 n = 8 chromosomes and species II has 2 n = 14 chromosomes. What would the expected…

A: The chromosomal mutations not only involve the change in the structure of chromosome rather it also…

Q: Explain the processes involved in autopolypoilization as well as allopolyploidization and how these…

A: Autopolyploidy is a type of polyploidy in which there is a numerical increase of the ame genome,…

Q: Define speciation genes. and What is the importance of speciation genes?

A: A gene is a short stretch of nucleotides present on a chromosome or DNA molecule, that codes for the…

Q: Whole genome duplication is important in speciation by hybridization because: It creates…

A: Whole genome duplication (WGD) is a process that results in the doubling of the genome. This means…

Q: hoose which of the following is true: a) Haploid cells have one allele per gene b) Haploid cells…

A: DNA is the genetic material present in most of the living organisms. The DNA is made up of 4…

Q: Define two modes of speciation and give examples of each.

A: Speciation is the evolutionary process in which certain populations got matured and evolved and…

Q: After genetic selection, some originally diploid species can become triploid, like for example some…

A: Triploidy is referred to as 3n, with 1n is the haploid chromosome number for the species in…

Q: Species I has 2 n = 8 chromosomes and species II has 2 n = 14 chromosomes. What would the expected…

A: Chromosome number in the individual can be calculated as: Ploidy × n =number of chromosomes  Where…

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: Anaeba Azollae? What are the potential uses and application of Anaeba Azollae in the future in…

A: introduction  Anabaena Azollae is a little filamentous phototrophic cyanobacteria for the most part…

Q: What factors must be present for allopatric speciation to occur?

A: speciation is the process of evolution in which new, different species are formed. A single…

Q: If two chromosomes of a species are the same length and have similar centromere placements and yet…

A: SolutionC) Loci are differentThe  term locus refers to the specific physical location of a gene or…

Q: Weismann's concept of "determinants" was supported by Roux's experiments in his investigation on…

A: August Weismann was a German biologist. He proposed the germ plasma theory. According to the germ…

Q: Briefly explain heterotrophism

A: plants make – or produce – their own food so, they are referred to as producers. Their roots absorb…

Q: What is meant by the term reproductive isolation? Give several examples.

A: REPRODUCTIVE ISOLATION:-  It is the evolutionary mechanism in which members are prevented not to…

Q: Describe different mechanisms by which new species come into existence.

A: The organisms that are allowed to interbreed and form potentially viable offspring are called…

Q: Draw a concept map illustrating the differences between phenetic, phylogenetic, and genotypic…

A: Taxonomy is the classification, naming and defining of biological organisms into discrete groups…

Q: In sexually reproducing species, each individual begins life with DNA inherited from both parent…

A: DNA, short for deoxyribonucleic acid, is the molecule that houses an organism's genetic code. Each…

Q: As we focused on linkage,chromosomal mapping, and many associated phenomena.In the pIn this chapter,…

A: A chromosome is a single piece of DNA whereas genes are segments of DNA positioned along a…

Q: What is the law of Segregation? A) Genes segregate during Mitosis B) Trait are inherited…

A: Segregation is the separation of allele pairs which has different traits of the same gene. It takes…

Q: explain briefly    The genetics of tetraploidy

A: Euploidy is a variation in chromosomes that includes entire chromosomal set in a cell or organism.…

Q: Can speciation occur without complete physical separation of populations?

A: Natural selection: It can be defined as the process by which organisms will adapt and bring about…

Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.