Distinguish between positive and negative control. Give examples of each from the lac operon

Q: Label feedback loop of body fluid homeostasis: kidney anatomy (stimulus, sensor, response, set…

A: The kidneys filter the blood on a regular basis to maintain the body's fluid and electrolyte…

Q: in 3 5% Shown below is a schematic diagram showing a 3000 bp region of yeast genomic DNA. (Note:…

A: DNA:  The hereditary substance in humans and almost all other animals is DNA, or deoxyribonucleic…

Q: What ions are removed from the uremic plasma? Mark all that apply Na+ K+ CI- Ca+2

A: Due to inadequate excretory, regulatory, and endocrine function of the kidneys results in  uremic…

Q: 2. An ecologist spent a year studying the population dynamics of a species of duck on a lake. At the…

A: Introduction Migration, in ecology, is the seasonal movement of animals from one habitat to another…

Q: Describe not just list 4 adaptations that allow plants to cope with these challenges, 2 for coping…

A: The transition of plants from water to land Liverworts are believed to be the first plants that…

Q: What made the angiosperms the most successful terrestrial plants? Discuss your answer.

A: Answer Angiosperms are the most dominant form of plant life in most terrestrial ecosystem.

Q: A hypersomotic ECF causes cells to: expand shrink

A: Hyperosmotic Solution:  Hyperosmotic solutions have a higher osmotic pressure, or a larger…

Q: 8 2

A: In this question, we are given two images of a mammalian ovary. We have to label each image with the…

Q: B) Migration is a one-way movement. C) Because their offspring return to the ocean, the entire…

A: Salmon are considered “anadromous” which means they live in both fresh and salt water. These are…

Q: Are cosmetics still being tested on animals? Show proof that the practice is still going on or has…

A: Introduction Cosmetic animal tests are archaic chemical-poisoning experiments devised more than half…

Q: (i) Draw and explain how SPO11 can generate double strand breaks. (ii) What would be the…

A:

Q: 1. What might be a disadvantage to temperature-dependent sex determination?

A: Note: As Per Guidelines, We Can Answer One Question At A Time. Ask Again To get rest answers.…

Q: This is about ecological sampling methods in estimating plant cover. Define the following: cover,…

A: Plant cover in ecology is used to measure the abundance of plant species in a relative area covered…

Q: Protein: Hemoglobin Circle and underline each codon, amino acid sequence, make a mutation of the 3rd…

A: Here the not cleared the mutation type, are point mutations, frame shift mutation, addition mutation…

Q: Most inherited forms of cancer involve _______________ and these individuals are for the mutation.…

A: Firstly we can examine what each of the terms given represents. 1. Tumor suppressor gene: It is a…

Q: How does temperature and PH affect the activity of enzymes.

A: Introduction Enzymes function as catalysts. Proteins are the most common, although some RNA…

Q: Disease associated with obesity Complete the following statements to describe the diseases…

A: Introduction Type 2 diabetes is a long-term medical condition in which your body doesn't use insulin…

Q: The genes responsible for albinism (A or a) and pink eyes (P or p) in mice are linked and wild-type…

A: The genes forms the hereditary units of the life. At the same time it consists of two alternative…

Q: IPTG. Explain the mechanistic steps whether the expression of beta-galactosidase (Z) and permease…

A: I) In case of the first merodiploid the constitutive mutation of the operator does not allow the…

Q: Identify the physical and social factors that influence hunger.

A: Hunger is the vigorous urge to eat food. It is also called the craving to eat something. There are…

Q: is the achilles' tendon reflex so hard to demonstrate compared to others? Why is the blinking reflex…

A: Answer: achilles tendon reflex so hard to demonstrate because it is innervate primarily by s1 and s2…

Q: 2-Deoxyglucose or 2-DG is a glucose analog that binds to hexokinase (the first rate- limiting enzyme…

A: 2 deoxyglucose is analogous to glucose but its hydroxyl group reduce in hydrogen thats why it's not…

Q: True or false: The dermis is

A: Three layers of tissue make up the skin: Epidermis, the top layer. Dermis, the middle layer.…

Q: D Question 8 This slide image shows O Rhizopus. Penicillium. O bacteria O yeast. 58865

A: The image shown is budding in Yeast. Option D is correct.  Budding is the method of reproduction in…

Q: RNA splicing is catalyzed by snRNAs and snRNPs which together constitute the spliceosome. Explain…

A: The snRNPs are the molecules that participates in the splicing of the pre-mRNA by first recognizing…

Q: Calculate for the water activity of the soy sauce in 80.3% ERH. Suppose the soy sauce is subjected…

A: Water activity is measure of energy status of water in a system.If more energy then microbial…

Q: The ff. mothers, (A) through (E) with given phenotypes, each produced one child whose phenotype is…

A: This question can be done by splitting each trait and crossing the concerned trait of mother and…

Q: Which of the following is unable to form a linkage group? O genes that are not located on the same…

A: a linkage group is made up of all the genes on a single chromosome. They are inherited as a group,…

Q: What is the significance of Juxtaglomerular apparatus in kidney function.

A: Urinary system is a part of body system which generally involved in formation of urine and it's…

Q: Explain the potential risk of Cytosine (imino form) during S phase.

A: In amino form cytosine pairs with guanine which happens during normal times leading to normal cell…

Q: You are studying the process of oxidative phosphorylation in the lab. You isolate several…

A: Mitochondria is also known as the powerhouse of the cell.

Q: (iii) Is P+O+Z+Y-// Is P+ OC Z - Y+

A: An operon is a unit of bacterial gene expression and regulation which includes structural gene and…

Q: The 20th century would witness the new anti-biotic revolution that would save millions of lives.…

A: INTRODUCTION Antibiotics are drugs that are used to treat bacterial illnesses in humans and animals.…

Q: How are ACE1 and ACE2 receptors related to the structure and function of mRNA vaccines (Moderna &…

A: ACE1 and ACE2 receptors aka angiotensin converting enzyme-2/ enzyme 1 plays an important role and…

Q: Analyze two DNA structures Figure 1(a) and (b) below and draw conclusions about their helical…

A:

Q: Question 3 This picture shows a non vascular plant. angiosperm. seedless vascular plant. gymnosperm.

A: Identification of both pictures given below. Thank you.

Q: A mile-wide river separates two rabbit populations for a million years. Over time, one population…

A: "Genetic variation" is the result of the recombination of genetic material during the inheritance…

Q: create a single illustration that will interrelate or link the two opposing pathways, the…

A: Answer :- The glycogenesis synthesis of glycogen from glucose in liver and muscles is known as…

Q: Explain the signaling steps that take place after the EGF receptor is dimerized, up to the poiunt…

A: As per our company guideline we are supposed to answer only first question or only first 3 subparts…

Q: Escherichia coli (E. coli) has one replication origin that contains specific genomic sequences…

A: DNA replication It is defined as the process through which the copying of DNA takes place in cells.…

Q: 1 Why is the bulk milk hauler an important link in assuring high-quality milk for humans? What…

A: Bull milk contain high amount of calcium and minerals. These are necessary for bone develpoment.…

Q: Gene A encodes for a protein A which prevents exit from the G1 phase of the cell cycle. You are…

A: Cancer is the uncontrolled cell division that is highly under the control of genes. Cell cycle is a…

Q: 1.  How do clams open and close their shells? 2. How does a clam draw water into its mantle cavity?…

A: Clams are bivalves that spend most of their time lying on the seafloor. When frightened, a clam uses…

Q: Naked viruses typically exit the cell via this/these processes (may choose more than one).

A: Introduction-  naked viruses typically exits cells via process called lysis, exocytosis and budding.…

Q: 2. What percentage of the population must be vaccinated to prevent measles from spreading? A. 1 B.…

A: Measles is preventable with the MMR vaccine. Measles, mumps, and rubella are among the diseases that…

Q: The trp operon, found in E. coli, is a group of genes that encode biosynthetic enzymes for the amino…

A: When tryptophan levels are low tryptophan operon  is induced to transcribe structural genes so that…

Q: laborate the advantage and disadvantages of Nano-Plant Growth Regulator

A: Plant growth regulators are the substances that support the growth of plants and are being applied…

Q: (iii) Explain why DNA in the presence of monovalent cations will have a high melting temperature…

A: Melting temperature Tm Tm is defined as the temperature at which 50 percent of the double-stranded…

Q: About kidney

A: kidney are bean-shaped organs that lies within the lower abdominal cavity and are retroperitonial in…

Q: The lac genotypes are as shown below: P+OcZ-Y+A+// P¯O+Z+Y+A+ (i) The lac operon consists of three…

A: Introduction The lactose operon (also known as the lac operon) is a group of genes present in E.…

Gene Interactions

When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.

Gene Expression

Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.