The first animals evolved O 6 thousand years ago 9.900 O 600 million years ago O 600 thousand years ago 60 thousand years ago

Q: Describe an easier method to detect the gene encoding for a specific toxin.

A: Gene:-  it consists of the sequences of nucleotide in DNA. And encodes a specific products including…

Q: Hobb's method

A:

Q: Illness and infections typically cause:

A: Illness is any unhealthy condition which alters the normal body health. It could be acute or chronic…

Q: V and the cross was TvD/tVd x tvd/tvd OD and the cross was TVD/tvd x tvd/tvd OT and the cross was…

A: Introduction A test cross is a cross done between one of the parents with known genotypes and the…

Q: Explain with reason the features of the human pedigree which indicate that a mutation at…

A: The heart of the cell's power is its mitochondria. It has mtDNA, or mitochondrial DNA, which is its…

Q: Compare and contrast internal validity and external validity. Be sure to define these terms and give…

A: The quality of the research design and procedures is discussed in terms of validity. In order to…

Q: Explain the way to elucidate differences in tRNA needed in the human and mitochondrial genome.

A: The transfer ribonucleic acid, or tRNA, is another name for it. The molecules known as tRNA are in…

Q: An ion that is essential for muscle contraction is Ca2+.  Which of the following statements about…

A: Introduction  Neurotransmitters released by the motor neuron that innervates a muscle cell cause it…

Q: 1. For how long has there been life on earth? 2. For what percentage of time has life existed on…

A: ​The geological time scale relates layers of rock (stratigraphy) and carbon dating to periods of…

Q: the relationship between mutation of RECQ5 and human disease, in particular exploring the effects on…

A: RECQ5:- it is a type of helicases. It is an ATP dependent helicase that can binds with single…

Q: Type your response in the box. Watch this video about the temperate forest biome. Explain how the…

A: Introduction:- A biome is a geographical area which is specified and characterised by the presence…

Q: A DNA nucleotide triplet that codes for the amino acid alanine is a. CCA b. CGG C. CCU d. CGU

A: Introduction The molecule that carries the genetic information necessary for an organism's growth…

Q: Explain predator-prey dynamics and clearly state the factors that influence this relationship.

A: Introduction An ecosystem deals with both biotic and abiotic factors and their interaction with each…

Q: Bison roamed free in an area along the eastern slopes of the Rockies, in what is now Banff National…

A: Gene frequency:-  it is usually represent the percentage of the population that have one type of a…

Q: Determine the chances that the two E.coli genes purC and pyrB will undergo cotransformation.

A: Introduction: The three methods of DNA transmission among bacteria are transformation, conjugation,…

Q: Describe two health effects associated with lead exposure:  A) health effect 1: B) health effect…

A: Lead dust is deposited over various items which we inhale and if it accumulates for long term in our…

Q: Q6. Determine if the level of organization is molecular or cellular. Copy and paste, molecular or…

A: Introduction  The hierarchy of complicated biological processes and structures that, in a…

Q: what control measures have been put in place to help caulerpa taxifolia

A: Introduction Caulerpa taxifolia is a marine green macro-algae found in the Indian, Atlantic, and…

Q: I was wondering if taking ap biology is a bad decission as a freshman.

A: The College Board in the United States offers the Advanced Placement (AP) Biology course and exam,…

Q: Please explain whether parents who have medium skin color (AaBbCc) can have children with the…

A: The alleles are the alternative forms of a gene that are located on the same locus of a homologous…

Q: You want to use a serial dilution to make a 1/50 dilution. The first dilution you make is a 1/5…

A: Introduction Dilution is a process by which the concentrations of solute are lowered down in a…

Q: Suppose a student performs a three-point test cross with mice involving mouse genes T, V and D. If…

A: Three point test cross:- it is usually used to study the sequence and position three genes present…

Q: The kidney may be viewed as an organ of retention rather than as an organ of excretion. Identify a…

A: In vertebrates, the kidneys are twin dark red, bean-shaped organs. In mature humans, they measure…

Q: What does RNA polymerase transcribe from the Lac Y gene on the lac operon? O beta-galactosidase O…

A: Lac Operon is a set of genes that are transcribed by the RNA polymerase which are solely responsible…

Q: Under genetic drift, if an allele’s frequency is 1%, what is the likelihood that it will be lost…

A: Genetic Drift is also called as an allele drift. It is the change in allele frequency by chance.…

Q: Describe trait of economic importance in livestock production

A: Introduction Livestock are the animals that are reared and domesticated for economic purposes to get…

Q: What are degenerate primers? Name two uses for degenerate primers.

A: Introduction  A primer is a small sequence of nucleic acids that serves as the precursor to DNA…

Q: quirements for Life cessary Life Functions ntenance of life involves: Maintaining boundaries…

A: Introduction:- Life is characterized by many process like digestion, metabolism, growth and…

Q: Which of the following factors stabilizes population growth into an S-shaped curve? a. limited…

A: Increases in a population's or a dispersed group's membership are referred to as population growth.…

Q: Q1. Determine if the event occurs during mitosis or during meiosis. Copy and paste, mitosis or…

A: cell division: When a parent cell isolates and reproduces, it creates at least two daughter cells.…

Q: DNA contains genetic code that determines... Ophysical traits O unobservable traits Ohow smart you…

A: DNA or deoxy ribo nucleic acid is main genetic material within eukaryotes such as humans. Their…

Q: In 1937, two German biochemists published a paper proposing these reactions as part of glucose…

A: Introduction The tricarboxylic acid (TCA) or Krebscycle or citric acid cycle was first proposed by…

Q: What is the minimum and maximum pH in which Enzyme X will work? What is the optimal (best) pH? Rate…

A: The enzymes are proteinaceous molecules that helps in accelerating the rate of the reaction that is…

Q: What significant intervention is connected with the promotion of maternal health?

A: Introduction: Each stage should be a positive experience that allows moms and their infants to reach…

Q: A Moving to another question will save this response. Question 7 All plants exhibit alternation of…

A: Introduction :- In plants and algae, the alternation of generations is the most common type of life…

Q: Explain how the structural and developmental characteristics and relatedness of DNA sequences are…

A: DNA is a polymer which is made up of a monomer called abnucleotide. Single nucleotide consists of a…

Q: Draw one red blood cell and at  one white blood cell. Label the cell membrane, cytoplasm, chromatin,…

A: Red blood cells are biconcave discs( Round, flat and indented at the center) that lack nucleus. They…

Q: Determine the 17 b p primers that can be used to locate the gene into which the transposon is…

A: The genes are a series of nucleotides found on chromosomes that code for a particular protein that…

Q: There are many types of PCR techniques available nowadays. Explain the concept of nested R and…

A: PCR stands for polymerase Chain Reaction. It is a technique which is used to amplify a given gene…

Q: ples, explain the three different degrees of dominance

A: Dominance takes many different shapes. The square root of the average degree of dominance is used to…

Q: genotypes and phenotypes

A: Genotype:  The genetic make up of an individual is called as the genotype. Example: Eye colour.…

Q: Explain how the following factors affect the blood velocity and volume flow rate as well as…

A: A stroke is a medical emergency that occurs when the blood flow to the brain is interrupted. This…

Q: Briefly describe the components of the four major types of lipoproteins and explain the function of…

A: Introduction: The chemical processes that keep the body of a live organism sustainable are referred…

Q: What is scientific consensus

A: Basically, a consensus defines a general agreement on a particular subject or matter. A example of…

Q: Write an expression to describe the amount of energy, x, a tertiary consumer receives from a…

A: Introduction :- Those who consume secondary consumers are referred to as tertiary consumers (large…

Q: Briefly describe the role of neutrophils in acute respiratory distress syndrome (ARDS).

A: Neutrophils are the type of white blood cells which help in fighting off the infection and…

Q: How many Covid cases were there yesterday in Ontario Canada

A: Introduction The COVID-19 pandemic caused by the corona virus, which is believed to have been…

Q: What does this do to his fluid balance, electrolyte balance, specifically sodium, potassium, and…

A: Introduction Diarrhoea is a condition where the body's solid waste is discharged frequently in fluid…

Q: Starting with One Cell describe and draw step by step the process of Meiosis I in males and females…

A: Reductional divisions is another name for meiosis I. Meiosis is used by both males and females to…

Q: Determine the reason behind the penicillin enrichment.

A: The genes are a series of nucleotides found on chromosomes that code for a particular protein that…

Human Evolution

Human evolution is the process of evolution of humans from early man to anatomically modern humans. The process of evolution in humans leads to the gradual development of traits like bipedalism. Humans are the highly social animals that make them the most advanced animal on Earth.  Human evolution is an outcome of interaction among the following processes: