Why is meiosis important for the maintenance of the normal quantity of chromosomes of a species with sexual reproduction?

Q: Question 3. Why must RNA splicing be absolutely precise?

A: RNA Splicing refers to the removal or cutting of non-coding regions of RNA (introns) from mRNA and…

Q: Which of the following receptors is NOT correctly matched with its stimuli? O photoreceptors -…

A: Sensory receptors play an important role in helping people learn about their environment, as well as…

Q: Which term describes kidneys? A. proximal B. distal C. superior D. inferior

A: Kidney-  these are the  two reddish-brown bean-shaped organs found in vertebrates. These are…

Q: (ii) Calculate the breathing rate during the first minute and then calculate the breathing rate…

A: Introduction The process of moving air into and out of the lungs to permit gas exchange with the…

Q: Which of the following should not enter the filtrate during urine formation? O red blood cells. O…

A: Answer- All of the above should not enter the filterate.

Q: Increased growth of cells caused by friction or pressure again the keratin layer is called ( О а.…

A: Introduction Skin is a stratified squamous epithelium tissue. It makes the skin layer and provides…

Q: Substances such as alcohol that promote the formation of urine are known as diuretics renal…

A: Urine is a watery, yellowish fluid that is held in the bladder and expelled through the urethra. It…

Q: 88) For The DNA polymerase enzyme: one option is incorrect a. Can work in the nucleus only b. Can…

A: Answer is d

Q: a muscle cell structural element that consist primarily of an actin filament is a/an______

A: A Muscle cell has actin filaments which formed structural element of muscle.

Q: Arguments in favor of the overkill hypothesis of megafauna extinctions are   a. Basically…

A: Evolution is a continuous transition of living forms, beginning with the basic forms of the past and…

Q: Which of the following has been shown to cause corrosion in iron pipes? O A. extreme ferrophiles O…

A: Corrosion: Corrosion is the natural transformation of a refined metal into a more chemically stable…

Q: What do you call a finger-like projection that arises from epithelial layer in some organs that…

A: Answer

Q: What could be the link between the land-plants with the emergence of photosynthetic protists, algae?…

A: *Land plants and closely related to green algae belongs to charophyta they are classified as…

Q: Which term describes the location of the adrenal glands with reference to the kidneys? A. proximal…

A: Adrenal glands are the endocrine glands that perform quite a lot of functions in our body.  These…

Q: Which of the following is a lymphatic organ? O red bone marrow O thymus O spleen all the above

A: Introduction :- The red bone marrow, which produces blood and immune cells, and the thymus, which…

Q: dichotomous key

A: A dichotomous key is an important scientific tool, used to identify different organisms, based the…

Q: The first step of a urinalysis procedure, before testing with a reagent stick, is to visually…

A: Introduction In humans and many other animals, urine is a liquid by-product of metabolism. Urine…

Q: Please give a description of the circulatory disease that occurs with aging and how changes in the…

A: * Hypertension is an condition in which the long term force of blood against artery walls is high so…

Q: Active as opposed to passive immunity may be acquired by: O having a disease or receiving a vaccine…

A: Immunity:  The presence of antibodies to a disease in a person's system confers immunity against…

Q: Analyze the causes and impacts of soil erosion and landdegradation

A: Soil is the earth's delicate skin that holds all life on Earth together. It is usually defined to…

Q: State TWO (2) guilt-free healthy practices to enjoy meals. i) ii)

A: Introduction  In today's generation there is lot of disbalance in diet and lifestyle.  There is huge…

Q: B cells give rise to plasma cells, which produce: O antibodies O antigen O erythrocytes

A: B cells are present in the body.They having various functions in body in response to infection.B…

Q: demonstrate your knowledge about the endocrine system

A: Endocrine system Two body systems are responsible for sending and receiving sensory information and…

Q: What is fermentation

A: Introduction :- The chemical breakdown of a substance by bacteria, yeasts, or other microorganisms,…

Q: (d) Demonstrate how the electrodes are placed on the scalp using a 10-20 system technique to perform…

A: Introduction The 10–20 system, also known as the International 10–20 system, is a way for describing…

Q: this exercise both parents were heterozygous for every trait. Would there be more, less or no…

A: Heterozygous traits are those in which one dominant form of Allele and one recessive form of allele…

Q: Archael promoters are most similar to those of O A. viruses O B. bacteria O C. eukaryotes O D. both…

A: Archeal Promoters:  Specific DNA sequences in the promoter are identified by transcription factors,…

Q: How are biodiversity hotspots defined? What assumption is made by this metric, and what is the issue…

A: *A biodiversity hotspot is a biogeographic region with high levels of biodiversity which is…

Q: The type of damage award - specific performance or expectation damages - can influence the…

A: Specific Performance is usually sought when one of the contracting parties suffers damages or losses…

Q: results in yellow leaves. S (dominant) results in short stems and s results in long stems. A cross…

A: punnet square is used to predict the offspring genotypes and phenotype . The dominant allele is one…

Q: Which part of meiosis is responsible for new combinations of alleles on different types of…

A: INTRODUCTION The series of cell events that occur in a cell in preparation for cell division is…

Q: Hormonal secretion is generally controlled by: a negative feedback mechanism O a positive feedback…

A: Introduction :- Hormones are secreted by the glands of the endocrine system, and each hormone has a…

Q: In a population of flowers growing in a meadow, C1C1 and C2C2 are autosomal codominant alleles that…

A: I gave you the answers in step 2.plese rate

Q: Question 5. Which enzyme is used in the processing of miRNAs that are encoded in the genome but NOT…

A: Introduction - The silencing complex is made up of short interfering RNA (siRNA), miRNA, and the…

Q: The oldest body fossils of a land animal are of_____ .a. insects c. cnidariansb. roundworms d.…

A:

Q: ) The SARS-COV2

A: It is option c.

Q: a. What concept pertains to the movement of particles across the cell membrane?       A. Diffusion…

A: a. What concept pertains to the movement of particles across the cell membrane? A. Diffusion…

Q: Categorize each of the following events as an example of genetic inheritance or epigenetic…

A: * genetic inheritance Inheritance is the process in which genetic information is passed on from…

Q: Fungi tend to reproduce sexually when nutrients are limited or other conditions are unfavorable, but…

A: Answer

Q: Explain the challenges of feeding a growing humanpopulation

A: With the advent of technology, humans have increased the carrying capacity of planet earth for the…

Q: Draw a schematic representation of Kreb’s Cycle. Label all the major steps and enzymes

A: Krebs Cycle is the intermediate part of cell respiration, that performed after that glycolysis and…

Q: Explain the importance of soils to agriculture

A: Introduction  The ecosystem can be defined as the interaction of living and non-living organisms…

Q: 8. Hemoglobin is a a) Reproductive pigment b) Respiratory pigment c) Carbohydrate d) Fat

A: The iron-containing protein haemoglobin (the primary component of red blood cells) helps the passage…

Q: Imagine a warm pond on the primordial Earth.Chance processes have just assembled a single copy of…

A: RNA is a molecule that plays a vital role in many biological processes, including protein synthesis,…

Q: 101) In the case of abortive infection a. The cells are destroyed by the virus b. The virus is in a…

A: Abortive viral infections are defined as cells that have been infected with a virus but did not…

Q: Life history consists of the adaptations of an organism that influence aspects of its biology, such…

A: Introduction :- The sequence of survival and reproduction events that occur during an organism's…

Q: 17. The table below provides the Biodrop results obtained for the DNA extracted from students 1-4…

A: The ratio of absorbance at 260 and 280 is used to assess the purity of DNA. ~1.8 ratio is accepted…

Q: Evaluate the primary causes of biodiversity loss

A: Introduction :- Habitat loss, invasive species, overexploitation (excessive hunting and fishing…

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: