Q1 The cell shown in the diagram has been magnified 3000 times. The diagram is 21 mm wide. What is the actual diameter of the cell? A 21 mm B 21mm /3000 C 21 mm x 3000 D 3000 /21mm

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A: Rigor mortis, algor mortis, and livor mortis are the early signs of the postmortem. These are the ch...

Q: What are transcription factors, and how do they influence development?

A: Gene expression includes transcription and translation.

Q: Which of the following agents does NOT cause protein denaturation? Neutral pH Air Heat Alcohol None ...

A: Introduction : Proteins are the nitrogenous organic compounds which are composed of one or more long...

Q: What are small ways that you think would promote safekeeping in our biodiversity? What do you think ...

A: Biodiversity is the variety of living organisms such as different species of micro organisms, plants...

Q: Evolution is based on which of the following concepts? (a) organisms share a common origin (b) over ...

A: Heritable change in the characteristics of biological populations over successive generations is kno...

Q: Individuals with the hereditary disorder ataxia telangiectasia suffer from neurodegeneration, immuno...

A: Ataxia-telangiectasia is a genetic disorder caused by a point mutation in the ATM gene.

Q: 8. Which pair of animals are homologous in structure? *

A: This question is based on homologous structure.

Q: 4. In the concept map of the endocrine system below fill out the names of endocrine glands (rectangu...

A: Together, insulin and glucagon help maintain a state called homeostasis in which conditions inside t...

Q: Relate the structures of the excretory and reproductive systems to their function in osmoregulation,...

A: In mammals, the excretory and reproductive systems serve vital but distinct tasks. The excretory sys...

Q: How many kilograms of feed are required per day to feed the 100 deer? b) Calculate the energy (in MJ...

A: Given  Deer required 22MJ per day  1 kg wheat has 85% of dry mass and gives 12.5 MJ of energy.  1 kg...

Q: Assuming that both types of pom-poms are present in the population, what do you think would happen t...

A: Effect on the pom-poms population if the black forest experienced a prolonged drought. 

Q: How do eukaryotic and prokaryotic RNA polymerases compare? Despite their added complexity, eukaryoti...

A:  The general process of transcription can be applied to both prokaryotic cells and eukaryotic cells....

Q: a. Summarize the factors that are causing lower numbers of caribou in herds in Alaska

A: In Alaska, caribou are divided into thirty-two populations. A herd's calving region is distinct from...

Q: Which of the following statements supports the idea that extinction is necessary? *   A. to give way...

A: Extinction is a process in which organisms or the groups are completely wiped off from the Earth. Th...

Q: Calculate the allele frequencies of A and a in the following population. AA individuals 50, Aa indiv...

A:

Q: if the biuret reagent was allowed to stand for 1 hour, what would the effect on the accuracy of the ...

A: * biuret test is also called as Piotrowski test used to detect presence of peptide bonds. *In presen...

Q: Mammals have brains that are more complex than those offish and amphibians, particularly in terms of...

A: The brain is the mass of nerve tissue at the front end of an organism. The brain integrates sensory ...

Q: Lola Fe is 80 years old. She claims that she’s been getting shorter every year, and that soon she’ll...

A: Different bodily changes occurs due to the increase in age. The height is a factor which is increase...

Q: Explain why the incidence of Down syndrome increases with maternal age.

A: Introduction Down syndrome is a genetic condition produced by an additional whole or partial copy of...

Q: 1 Discuss the different types of connective tissues in animals

A: ANSWER)  Tissues are the constituents of the body and are involved in supporting, protecting and giv...

Q: Compare and contrast the nervous system organization inarthropods and vertebrates. What are their fu...

A: The nervous system is the body's primary governing, regulating, and communication system. It is the ...

Q: Specify the inheritance patterns for each of the statement – it can be one of these following: incom...

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A: A cascade reaction, also known as a domino reaction or tandem reaction, is a chemical reaction that ...

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A: Muscular dystrophy can be defined as a group of diseases that is responsible for the weakness and lo...

Q: A cell that is undergoing meiosis started 6 chromosomes. At the end of meiosis I: 1. How many cells...

A: Meiosis is a process in which a single cell divides twice to produce four cells with half the amount...

Q: How is Aristotle’s “scale of nature” idea linked to early evolutionary thought? In what ways does it...

A: Evolutionary theory of biology states that organisms undergo a change in successive generations over...

Q: 1 8 2 3 5 Zoom A. site for modifying, sorting, and packaging proteins for excretion from the cell. B...

A: Animal cells are eukaryotic cells with a plasma membrane surrounding them and a membrane-bound nucle...

Q: Explain how fertilization provides genetic diversity to the offspring

A: Fertilization is the union of two haploid gametes - the male gamete or the sperm and the female game...

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A: After two days he feels better, he save the rest of penicillin for later days, result is causes the ...

Q: gene transcription regulation in eukaryotes that are post-transcriptional/pre-translational:

A:

Q: What is water cycle and explain how it works

A: As per our guidelines we are not allowed to answer more than one question at a time. Please ask othe...

Q: A replication fork is shown below. The primary enzyme that catalyzes replication is DNA polymerase T...

A: The replication fork * is a region where a cell's DNA * double helix has been unwound and separated ...

Q: Which of the following is required for RNA splicing to occur?

A: RNA splicing is the process in which newly made precursor m-RNA is transferred into a mature mRNA.

Q: Compare the mechanisms and accuracy of auditory localizationof a sound source in a human, an owl, an...

A: The ability to analyse the direction from which a sound is originating is called sound localization....

Q: Cystic fibrosis is a recessive Mendelian disorder. An individual must have two copies of the recessi...

A:

Q: Question 2 Which of the following is not a key step in the activation of MRNA synthesis in eukaryote...

A: The nucleus uses the nucleotide sequence of DNA as a template to synthesize mRNA. The enzyme RNA pol...

Q: Where is rhodopsin localized in a vertebrate retinal rod? Whereis the receptor potential generated? ...

A: The human eye is a sensory organ which responds to visible light and enables humans utilise visual i...

Q: 3. Ehylene glycol, the main ingredient in antifreeze, is an odorless, colorless, sweet tasting water...

A: In case of ethyl glycol poisoning, ethyl alcohol is and fomepizol is used for the treatment as an an...

Q: Mark the following statements about Hemoglobin TRUE or FALSE: A. ♥ Hemoglobin is more effective when...

A: Hemoglobin is an oxygen carrying protein present is red blood cells. It is a pigment which gives who...

Q: Virology:what assembly strategy is used influenza? Where are the influenza viruses assembled?

A: Answer 

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A: *Insects grow by metamorphosis that means by undergoing changes like beetles, moths, butterflies, sa...

Q: What other kinds of limitations do animals have in learning?

A: The types of learning that occurs in the animals includes: habituation sensitization classical co...

Q: In mitochondria, solar energy changes to chemical energy stored in the produced sugar. Select one: O...

A: All organisms sustain on the various functions that are important for them to live. All these functi...

Q: Choose two of the following groups of animals and write a paragraph for each (5-7 sentences) to expl...

A: Zoology is the field of biology which examines animals, particularly their structure, embryology, de...

Q: What is the difference between psychology and physiological?

A: Psychology It is described as the study of the mind and behavior from a scientific standpoint. Psych...

Q: Туре of transport protein State of Energy Important proteins Origin Destination required involved in...

A:

Q: Lype P = n! (p)* (q)"* х! (n - x)! Practice Problem: You cross a true-breeding pea plant with red fl...

A: Genotype of true breeding plant producing red flowers = RR Genotype of pure plant producing white fl...

Q: Ovulation in mammals, whether it is induced or spontaneous,occurs in response to a surge of luteiniz...

A: Luteinizing hormone (LH) is a gonadotropin.

Q: What do you think would happen next if larger predators were introduced into this low-predation habi...

A: Predator are animal that eats other animals. there are different types of predators larger predators...

Q: To collect blood from infant patient and you need low ? amount, Which source is good * Arterial Bloo...

A: The human body is made various organ system. All these organ systems perform different physiological...

Oogenesis

The formation of the ovum (mature female gamete) from undifferentiated germ cells is called oogenesis. This process takes place in the ovaries (female gonads). Oogenesis consists of three stages known as the multiplication phase, growth phase, and maturation phase. 

Cell Division

Cell division involves the formation of new daughter cells from the parent cells. It is a part of the cell cycle that takes place in both prokaryotic and eukaryotic organisms. Cell division is required for three main reasons: