Environmental factors can influence the survival rate of the organism in a population. Name at least 5 environmental factors.

Q: What is crossing over? How is meiosis related to this phenomenon?

A: Linked alleles, such as A-b and a-B, combine to form the gametes A-b and a-B, which are responsible ...

Q: - Explain another methods by which cytotoxicity is measured ?

A: Certain substances or mediator cells have the capacity to kill live cells. can be triggered by a var...

Q: How can the concept of recombination frequency be used in genetic mapping?

A: It is the process of determining the location of genes on a chromosome that is called genetic mappin...

Q: Besides the XY system, are there other sex determination systems?

A: XY system of sex determination is found in humans.  In humans, males are heterogametic sex and femal...

Q: You are studying Protein X which plays a role in promoting the G1/S phase transition in eukaryotic c...

A: The activity of the protein X is increased due to - Activation of protein that binds to ORIC. Explan...

Q: Griffith discovered a “transforming factor” in bacteria that conveyed infectiousness in 1928. In 194...

A: Introduction: DNA stands for 'deoxyribonucleic acid' and it is the hereditary material in humans and...

Q: Discuss the suitability of bromocresol green and thymol blue (2nd change only) for use as indicators...

A: The term acid-base indicator is associated with a dye that plays an important role in changing color...

Q: Which of the following cells are pluripotent? * O a) embryonic stem cells O b) nucleosomes c) hepato...

A: Stem cells have the capability of cell division and they can produce different types of cells. Accor...

Q: g processes produce/s daughter cells that are genetically identical to the original parent cell? (a

A: Answer: 

Q: n Prophase II of melosis? OOOO

A: Introduction:- Meiosis is a process in which a single cell divides twice to produce four cells with ...

Q: Please provide an illustration of the stages of meiosis of Ascaris lumbricoides: Anaphase I, Telopha...

A:

Q: Cryosurgery, there isn't a little pain sensation because low temperature tend to densities nerve. * ...

A: 1. Cryosurgery: The word "cryo" relates to extreme cold. So cryosurgery is a procedure involving Ext...

Q: Color each part of the cell based on the color given on the other a ide Also, label each part of the...

A: Labelled structure is named below.

Q: hanical gated channel Can be opened because a physical linker protein that causes a physical "pull" ...

A: Mechanical vibration or pressure, such as sound waves or the pressure of touch causes mechanical gat...

Q: In what ways does the double helix explain the essential properties of a gene? What are Chargaff’s r...

A: DNA: Deoxyribonucleic acid is a kind of deoxyribonucleic acid.DNA is a polymer made up of two polynu...

Q: The nucleotide composition of an organism's DNA can vary depending on its environment. How would you...

A: The DNA is made up of four nitrogenous bases. Different genes have different sequences and that is w...

Q: An experiment is designed that demonstrates the local vascular phenomenon of active hyperemia. Click...

A: Hyperemia  Active hyperemia is the excess of blood supply to an organ or any other part of body.

Q: Why scientist are not allowed to culture headless baby. What makes it immoral?

A: Culturing microorganisms is generally done with the help of a parent strain and a rich media that pr...

Q: Genetics on our daily lives, make an essay on how Genetics is affecting our lives by discussing at l...

A:       INTRODUCTION           Genetic is mainly study for the genes and hereditary activities and to ...

Q: The condition phenylketonuria is caused by a recessive allele. There are two carriers who have proge...

A: Phenylketonuria (PKU) It is an autosomal recessive condition that causes mental impairment owing to...

Q: B.3 Compare the anatomy of the bird and butterfly wing below and answer the follow-up questions.

A: The Analogous pairs of organs are those which have similar functions but no similar structure and no...

Q: 6. If the first G changes to A what kind of mutation will happen? Show the change in amino acid sequ...

A: Introduction :- A mutation occurs when the sequence of DNA changes. Mutations can occur as a result ...

Q: Genetic engineering has been a debatable topic in science as many people are only aware of its risk ...

A: The correct answer for this question is - b) II,III and VI  Explanation : We can divide the giving o...

Q: Questions: 1. What type of evolutionary mechanism did this story show? 2. Was there an adaptation in...

A: When a species goes extinct, it loses all of its genetic legacies. In order to adapt to environmenta...

Q: atelets platelet plug formation hemophilia megakaryocytes coagulation thromboxane A2 serotonin agula...

A: Hematopoietic cells or megakaryocytes, are essential for the generation of blood platelets. The clas...

Q: This diagram shows a parental cell going through mitosis and producing 2 daughter cells. Which cells...

A: Division of cells in such a manner that each of the two daughter cells receives the same number and ...

Q: 1. What natural defenses do you have against this infection?   2. What role does your adaptive imm...

A: * Natural defence and immune system defend the body against infections. *Natural barriers examples s...

Q: Resting phase of the cell, where it undergoes growth and DNA replication is called a) Mitosis phase ...

A: Cell cycle: it is decided into many phases such as resting phase, preparatory phase, and division ph...

Q: At which stage in the cell cycle or mitosis are chromosomes replicated?

A: cell cycle is the series of events that takes place in a cell as it grows and divides. 

Q: Attempt to seamlessly integrate the quotation into the text by using a signal phrase or structuring ...

A: Nutrients are the compounds found in food that give us energy, allowing us to heal and develop, whil...

Q: A strain with the ability to conjugate is mixed with a recipient strain.  Recipients are noted to be...

A: By the way the question is incomplete. There should be a fourth option as : RECEPIENT has recA gene ...

Q: 1. Which of the following would best determine whether two flower species share a recent common ance...

A: Evolution is the change in characteristics of species from one generation to another. Theory of evol...

Q: 1. In your own understanding, why is the trophozoite form of Trichomonas vaginalis considered as the...

A: Trichomonas vaginalis is a protozoan which causes disease named trichomoniasis. It is considered as ...

Q: The Most Recent Common Ancestor (MRCA) is an individual who donated DNA to every single living perso...

A: The statement that describes the human MRCA based on mitochondrial evidence is: A. A woman who lived...

Q: The list below choose all the concerns surrounding antimicrobial use. A. toxicity B. disruption of ...

A: Toxicity

Q: How are different kinship systems defined?

A: The term Kinship can be referred to as the blood or marital relationship that connects individuals t...

Q: analyse the player who is about to take a shot from the picture attached 1) Which are the agonist...

A: Muscles contract and afterwards relax to move body components. Muscles can draw bones back into plac...

Q: Please describe the organism, leishmania donovani.

A: Leishmania is an important pathogenic zooflagellate genus closely related to Trypanosoma. The genus ...

Q: Before the cell undergoes meiosis, it has a total of 40 chromosomes. Which of the following are true...

A: Meiosis Meiosis is a type of cell division in sexually reproducing eukaryotes, resulting in four dau...

Q: Use examples to explain the difference between analogousstructures and homologous structures.

A: Evolution is defined as the process by which opportunities arise within an individual over a period ...

Q: How do bacteria take advantage of their host to grow and replicate

A: Bacteria reproduce by consuming nutrition from the host cells. Bacteria have developed a variety of ...

Q: allów it to move past the G1 and G2 checkpoints even if its growth factor is not present, These muta...

A: Whenever cells come into contact with each other, the mechanism of contact inhibition occurs. As a r...

Q: The action potential is split into 4 parts (A-D). For each part, 1. Describe what stimulated the cha...

A: The term "Action Potential" refers to a quick brief rise in Membrane potential (Negative to positive...

Q: Since eukaryotic chromosomes are assembled with histone proteins, how are replication and transcript...

A: Histone  These are the proteins that are basic in nature as they are abundant in the amino acids lys...

Q: Capital Campaign for Opiods Addiction

A: Narcotic Awareness Campaign and Education In 2020, there were 411 excess passings that elaborate the...

Q: How intelligent is domestic cat compare to domestic dog? Why can’t cats be sane size of large dogs? ...

A:

Q: Discuss the life cycle stages of the following: a. Leishmania donovani b. Trypanosoma cruzi

A:   Please rate the answer.  Life cycle of Leishmania donovani: ▪ The parasite has two stages in its l...

Q: 85 84 83 B6 88 B9 B10 B12 B13 B14 B15

A: Since the guildlines permit me to answer first three questions i will do so to the best of my knowle...

Q: Use the forkline method format. 2. HHiij x hhllJj

A: A trait is a characteristic features that is unique to a specific individual . A trihybrid cross is ...

Q: QUESTION 5 What event would most directly lead to the development of female external genitalia? Abse...

A: Event directly related to development of female external genitalia. 

Environmental health and hazards

An organism's environment is the environment in which it lives and has an impact on its well-being. The World Health Organization (WHO) defines environmental health as "those aspects of public health, such as quality of life, that are influenced by physical, chemical, biological, social, and psychosocial components in the environment." Environmental health is concerned with both natural and man-made settings in order to enhance public health. Environmental science, occupational medicine, toxicology, and epidemiology are the key subdisciplines of environmental health.