In plants, the transition from water to land most likely happened once twice: ones in the moss lineage, once in the fern lineage several times

Q: One of the autosomal loci controlling eye color in fruit flies has two alleles: one for brown eyes a...

A: The fruit fly's color of the eye is further controlled by the autosomal locus. The given fly compris...

Q: A) Briefly explain what oxygen is? B) Is the surplus of oxygen in our atmosphere a requirement for l...

A: Oxygen is a non metal with atomic number 8.  Its concentration is about 21%  in the atmosphere.

Q: Given a non-template strand with this sequence: 3'- G CATCGCTAGCGGCTAGA-5' What will be the sequence...

A: The Maij difference between DNA and RNA is that DNA have bases A, T, G ,C where as RNA has A,U,G,C. ...

Q: What would have happened if the darwinian revolution did not unfold?

A: Darwin revolution is revolution after his book origin of species. 

Q: Gymnosperms vs. Angiosperms 1) The gymnosperm seed results from and an angiosperm seed results from ...

A: Gymnosperms These are seed-producing plants such as conifers, gnetophytes, cycads, etc. Angiosperms ...

Q: Which phase of meiosis reduces the chromosomenumber?a. prophase I c. anaphase Ib. prophase II d. ana...

A: Meiosis is a process where a single cell divides twice to produce four cells containing half the amo...

Q: Do you think the scar would look better (i.e. the wound heal "better") if friend #2 underwent hyperb...

A: This is because the scars of Tb never heals, it cannot be reversed under any circumstances, even whe...

Q: The lumbar region is ________.a. inferior to the gluteal regionb. inferior to the umbilical regionc....

A: Vertebrae of a human spine is divided into cervical, thoracic, lumbar, sacral and coccygeal. Out of ...

Q: 56 moles of glucose enter the respiration of a bacterium, since the bacterium is aerobic respiring m...

A: From glycolysis, one glucose molecule gives rise to the end product that is 2 pyruvate molecules. Fr...

Q: Describe alleles and why they occur on homologous chromosomesof sexual reproducers

A: The term "chromosome" is derived from the Greek word for "color (chroma) and body (soma)." Thread-li...

Q: The compound 2,4-dinitrophenol (DNP), which was used in diet pills in the 1930s but later shown to h...

A: Mitochondria is a site for aerobic phases of cellular respiration in cells. 

Q: Chromosome All possible chromosome configurations at diakinesis Mutation number wwm Monosomy Trisomy...

A: Aneuploidy occurs due to loss or gain of one or more chromosome. 

Q: Edmontosaur description

A: Edmontosaurus is a genus of hadrosaurid dinosaur. It contains two known species: Edmontosaurus regal...

Q: What effect do sodium, caffeine, and alcohol have on calcium levels in the body?

A: The human body is made up of everything that makes you, you. Our genetic information determines and ...

Q: Percutaneous Mitral and Tricuspid Valve Replacement Device can sustainability be incorporated into t...

A: Percutaneous valve surgery A percutaneous valve replacement is a minimally invasive procedure to rep...

Q: Crystal: Calcium oxalate or calcium phosphate in kidney stones If it is something beneficial,how ca...

A: Kidney is the most important part of the excretory system in the body that initiates the removal of ...

Q: In what ways does environmental degradation related to the occurrence of disasters in the country?

A: Environment refers to the factors present in the surroundings of a living being.  

Q: Acetic acid (a weak acid with a pKa of 4.75) and ethanol (an alcohol) are each composed of two carbo...

A: The plasma membrane is primarily composed of lipids. These are made up of fatty acids and glycerol. ...

Q: What are the differences of dogs from other kingdoms?

A: Identification :  Whittaker proposes 5 kingdom classification based upon cell structure,  organizati...

Q: Discuss how the study of microbial biofilms has evolved over time and the contribution of Bill Coste...

A: Biofilm is a term used for defining an association of microbial cells and layer of exopolysaccharide...

Q: Which of the following is TRUE about CAM photosynthetic pathway? Compared to the C3 and C4 pathways,...

A: * CAM photosynthetic pathway also called  Crassulacean acid metabolism photosynthetic pathway. *CAM ...

Q: What is the maximum number of different alleles for a particular locus that can be present in a sing...

A: ANSWER:  ALLELE- An allele is a variant form of a gene. and a gene is a sequence of nucleotides that...

Q: Some organisms—for example, certain fungi—reproduce asexually when the environment is favorable and ...

A: A fungus is any individual from the gathering of eukaryotic living beings that incorporates microorg...

Q: 8. The process of arranging organisms into similar or related groups, primarily to make it easier to...

A: Classification is the process in which the organisms are arranged into similar or related groups

Q: Name 10 cell parts and mark check (/) if present; mark cross (X) if absent. Example: Eukaryotic Euka...

A: Cell parts with their absence or presence in eukaryotic /prokaryotic cell or virus are given in foll...

Q: Describe the role of microtubules in nuclear division.

A: A microtubule is a type of filament present in the cytoskeleton.

Q: Which of the following are true about the logic we use to identify alleles under positive selection ...

A: 1)Alleles under positive selection occur at relatively high frequency. Positive frequency dependent ...

Q: What are the typical reactions observed when incubating lactic acid bacteria in litmus milk?

A: Because it includes the milk protein casein, the sugar lactose, vitamins, minerals, and water, milk ...

Q: 3. Red-green color blindness (b) is a recessive sex-linked trait. A colorblind male marries a normal...

A: * Red-green color blindness is also called as deuteranopia. * The affected individuals having this t...

Q: Patch clamping can be used to measure the conductance properties of individual ion channels. Describ...

A: Patch clamping is the technique that is used to determine the flow of ions through the ion channels.

Q: In which of the following plant group the gametophyte is the dominant generation? Group of answer ch...

A: Gametophyte generation is the life cycle of the haploid stage or the stage of the gametes. The sporo...

Q: If you notice on your agar plate that there are more than one color of colonies-- What does this mea...

A: A bacterial colony is what you Called a set of bacteria derived from the same mother cell. which mea...

Q: Define linkage and relate it to specific events in meiosis.

A: If two alleles of genes are located close together on the same chromosome, both the genes will be pa...

Q: What are the basic concepts and precautions to be observed in specimen collection for Microbiologica...

A:

Q: Q1 A population with a heterozygosity value of 0.5 necessarily satisfies the Hardy- Weinberg equilib...

A: Hardy-Weinberg Equilibrium is a concept that serves as a benchmark for researchers to analyze gene e...

Q: Chimpanzees, bonobos, and orangutans cannot speak like us because A: They are too stupid. B: Their a...

A: Speech is a communication that is used to express our thoughts in words. 

Q: Which type of the following play a role in the gravitropic response of plants according to the stato...

A: Statoliths hypothesis Gravity perception is best explained by the starch–statolith hypothesis that s...

Q: Offer evidence in support of the hypothesis that meiosis evolvedfrom mutations in the process of mit...

A: The process that helps in the development of daughter cell from parent cell can be termed as cell di...

Q: Simian Virus 40 is carcinogenic in primates.  1). which molecule of the virus 2). what particular ...

A: Viruses come under the category of microorganisms (tiny creatures) that can be found in the environm...

Q: Hand drawing of a forest ecosystem foodchain

A: Introduction: A food chain is a linear sequence if organisms representing producer to top consumer o...

Q: How does the transcribed mRNA convert into a functional protein?

A: Introduction: Translation is the process by which ribosomes in the cytoplasm or endoplasmic reticulu...

Q: At the playground, a bully has been causing other students to play whatever games they want. Althoug...

A: Many weaker boys uniting together to fight against a single stronger boy is a kind of group behavior...

Q: Which of the following are jawless? Choose all that apply. O hagfish O lampreys O bony fishes O cart...

A: Jawless organisms are belongs usually to class Agnatha and primitive in nature. 

Q: 3) Analysis of the sequence of a DNA fragment shows the presence of restriction site for the enzyme ...

A: The restriction site is the site which is a type of specific genetic sequence present on the DNA fra...

Q: . What are the number of total chromosomes that carries the genes encoding heavy and light chain pol...

A: Introduction :- Immunoglobulins or antibody are made up of two light chains and two heavy chains of ...

Q: This molecule: •contains potential energy •is used to convert CO2 into glucose •has an unstable trip...

A: The molecule is ATP and it has unstable triphosphate tail , the main energy sources comes from hydro...

Q: which cellular function is performed by only some types of cells? obtaining nutrients and chemical ...

A: Cells must perform functions in order to support and maintain life, that is cellular functions, such...

Q: hat are the differences of hibiscus from other kingdom?

A: Hibiscus belongs to Kingdom Plantae. Differences of Kingdom plantae from other kingdoms are mentione...

Q: Where is the sucrose produced by photosynthesis generated?

A: Photosynthesis includes light-dependent and light-independent phases.  

Q: Referring to the genetic code (the codon usage table), what would be the amino acid sequence of the ...

A: Mutations are a sudden, heritable change in the DNA sequence that alters the amino acid sequence whi...

Genetic Variation

Genetic variation refers to the variation in the genome sequences between individual organisms of a species. Individual differences or population differences can both be referred to as genetic variations. It is primarily caused by mutation, but other factors such as genetic drift and sexual reproduction also play a major role.

Quantitative Genetics

Quantitative genetics is the part of genetics that deals with the continuous trait, where the expression of various genes influences the phenotypes. Thus genes are expressed together to produce a trait with continuous variability. This is unlike the classical traits or qualitative traits, where each trait is controlled by the expression of a single or very few genes to produce a discontinuous variation.