A cross between homozygous purple-flowered and homozygous white-flowered pea plants results in offspring with purple flowers. This demonstrates the concept of Group of answer choices dominance. true-breeding. recessive traits. a dihybrid cross. the blending model of genetics.

Q: Salamanders can regenerate limbs, but only under certain conditions. a) What protein can substitute ...

A: Nerve Growth Factor (NGF) is able to induce salamander limb regeneration when injected into cells th...

Q: What are the parts of cell involved during meiotic division? Specify the parts during prophase, meta...

A: Introduction :- A cell must first go through interphase before entering meiosis I. The cell grows du...

Q: MULTIPLE CHOICE Which of the following is the best example of codominance? a person with AB blood ty...

A: Given: Codominance is the phenomenon in which two contrasting alleles of the same gene lacking domin...

Q: Explain the importance of using the proper equipment in laboratory.

A: Science lab, one of the interesting and admiring place to learn and create new things. Lab equipment...

Q: Why should the microscope be calibrated for each objective and prior to each use?

A: Introduction  Calibration is the process of establishing up an instrument such that it can produce a...

Q: The ribosome is the target for many important antibiotics. These drugs must discriminate between bac...

A: a) Tetracycline: They inhibit protein synthesis via reversible binding to bacterial 30 S ribosomal s...

Q: When using the comparative method (planned comparisons) to study why Violet-throated Starfrontlet (a...

A: Answer :  a.  A closely related species of starfrontlet that has an unusual haemoglobin protein.  

Q: What are the functions of microtubules?

A: A cell organelle is a subcellular structure inside a cell that serves one or more functions, similar...

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A: Based on the Punnette square, the first child of Sally and Harry will have 50% probability of having...

Q: A mutation in dynein is made so that the protein no longer functions. Identify whether the following...

A: Dynein is a motor protein involved in the movement of organelles and vesicles in the cells.  

Q: Please answer fast AFFINITY CHROMATOGRAPHY a) Explain the mechanism by which the CB column binds L...

A: A) Affinity chromatography based upon - molecular interactions.  Affinity is indirectly proportional...

Q: Being able to digest lactose after the age of four is common / uncommon (circle one) around the worl...

A: Lactose intolerance is a phenomenon in which plateaus of the dairy product is not completely digeste...

Q: Pond Animal Community B Determine the diversity of the animal community in the pond using the Shanno...

A: Pielou's Evenness Index is used for measurement of diversity along with species richness. While spec...

Q: n a few short sentences, explain what Descent with Modification means. (Use your own words).

A: One of the branches in science that deals with the study of genetic material as well as heredity can...

Q: This photograph was taken at a location on Mount Saint Helens called Meta Lake. The area was clear-c...

A: An ecosystem is made up of all living organisms as well as physicochemical components They are also ...

Q: 43. New peonies, perennial plants that produce showy propagated from the parent plant by dividing co...

A: Introduction  A perennial plant, sometimes known as a two-year plant, is one that lives for more tha...

Q: 1. Which day/days of the woman's menstrual cycle should the sperms be introduced into the her reprod...

A: The female menstrual cycle includes the proliferative phase, secretory phase, premenstrual phase, an...

Q: How are you going to diagnose a plant disease which is not familiar to you?

A: Plant pathology is the study of plant diseases, including their causes, methods of occurrence, inter...

Q: Define optical activity? What is the difference between D/L System of nomenclature?

A: Light is a electromagnetic field. It consists of two different fields.  The light waves oscillate in...

Q: After ovulation, the secondary oocyte enters the oviduct. Passing by the fimbriae it enters the __

A: The secondary oocyte is released from the mature Graafian follicle of the ovary during ovulation und...

Q: Complete the table to characterize the morphological variations on the following:       The Speci...

A:

Q: DIRECTIONS: Study the diagram of nitrogen cycle on page 8. Imagine that you are a nitrogen molecule....

A: Introduction The nitrogen cycle is a biogeochemical cycle in which nitrogen is transformed into a va...

Q: 1a-Farmers often use pesticides to kill insects to protect their crops. However, insect populations ...

A: Pesticides can easily debase soil, water, turf, and other vegetation. As well as killing pests or we...

Q: Explain further the disease triangle?

A: The disease traingle is a kind of model that is used to understand or study the host and pathogen re...

Q: The term anaxonic means; With an axon None of these is correct Without an apparent axon O Non-dendri...

A: Neurons are fundamental units of brain and mervous system. They transmit information to the other ne...

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A: Plants require nutrients to grow and soil is the major source of nutrients.There are 17 essential nu...

Q: When is melatonin usually produced in higher levels? O Melatonin levels remain constant throughout t...

A: Melatonin is a hormone produced largely by the pineal gland at night and has long been related with ...

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A: Fact: There are around 450 naturally occurring amino acids that are known to form monomer units of p...

Q: In preparying cells for karyotyping, a hypotonic solution is used in the process.  What is the purpo...

A: Given: In preparying cells for karyotyping, a hypotonic solution is used in the process.Karyotyping ...

Q: In preparying cells for karyotyping, a hypotonic solution is used in the process.  What is the purpo...

A: Cytogenetics is the science or study of chromosomes.

Q: A D

A: Tissue is a group of cells that have a common structure and function as one. The intercellular matri...

Q: Permission O Antagonism O Permissiveness O None of these is correct O Synergism

A: Glucose, or blood sugar, is the primary sugar found in your blood. It is derived from the food you e...

Q: Sses and sklils ethically on onicotion technology. em or need is to find out c environmental situati...

A: In the given question, an experimental situation is mentioned. The aim here is related to technologi...

Q: When the restriction endonuclease EcoRI is used to digest a 10 kb DNA fragment, it produces 4 kb and...

A: Restriction enzyme are used to digest the Framgemnts of DNA at the specific sites. The sites are dif...

Q: What causes ligands to disappear and degrade?

A: Cell signalling is a method by which cells in the body interact with one another in order to control...

Q: The names of the muscles can indicate all of the following, EXCEPT ___________. a.myofibril numbers...

A: Question 1)  Answer : Option (a) is correct. - myofibril numbers of the muscle.  

Q: Describe possible mechanisms for why blood pressure may have a greater change during the Valsalva ma...

A: Physical fitness is essential in our everyday lives, it benefits us in so many ways and makes us fee...

Q: Which of the following structure is controlling the rate of spermatogenesis? a.Sertoli cells b.Leyd...

A: Sertoli cells are a type of somatic cell. Leydig cells are responsible for the production of testost...

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A: The answer is 22. Meiosis is a process during which cell chromosomes decreases.It a division process...

Q: Poliovirus contains a protein that possesses an NLS.

A:     Viruses are intracellular parasites that rely on host cells for completion of their life cycles...

Q: All afferent signals travel what direction? O None of these is correct O Toward a muscle Toward the ...

A: All afferent signals travel towards central nervous system.   

Q: An antigen that causes an allergic response is a(n)

A: Antibodies destroy cells inside the body without the whole complement system being stimulated in thi...

Q: All of the following make meiosis different from mitosis EXCEPT O chromosome number is reduced by ha...

A: 2 types of cell division is seen in nature; meiosis and mitosis. Mitosis is undertaken by somatic or...

Q: Discuss about the equilibrium and balance that are controlled by the ear.

A: Ear  Ear is a sensory organ of the human body that has three main part the outer ear, middle ear and...

Q: State the part of eye that constricts or dilates based on the amount of light in the environment. A....

A: 1. Pupil helps in constriction and expansion based upon the amount of light present in our environme...

Q: Tabulate five (5) differences between frog and mammalian ovaries, and three (3) differences between ...

A: Characteristics Frog Mammal Ovary The Frog ovary, which contains six or more central, hollow sacs ...

Q: How can a dream about winning the lottery be based on activation-synthesis theory?

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Q: A- Explain of the following: 1- Cytokinesis 2- Bacteriophages 3- MTOCS 4- protein turnover

A:

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A: Life adapts as well as diversifies on the basis of change in circumstances in order to fit into nich...

Q: Identify the visual accommodation when focusing on a near object. A. Ciliary muscles contract, suspe...

A: Human eyes cannot change the distance of lens directly to observe nearer to to farther. However cili...

Inheritance and Mendelian Genetics

Inheritance means the passing of traits to offspring from parents. These traits could be passed either through asexual reproduction or sexual reproduction. The offspring receives the genetic material from the parents. Mendelian inheritance is a certain biological inheritance that follows the rules and principles laid down by Gregor Mendel in 1865. The initial hypothesis was considered wrong, but other inheritance theories modified the concept of inheritance and thus genetics.