9. The sister chromatids begin to coil more tightly and become visible under a light microscope Meiosis |

Q: metals to different xenobiotic

A: There are basically five main possible mechanisms of heavy metal resistance of microorganisms-

Q: Distinguish between the main groups of archaea and identify specific types of archaea belonging to…

A: Archaebacteria are the oldest living organisms belonging to kingdom Monera and are classified as…

Q: Lymphoid organs are divided into primary and secondary peripheral organs. Briefly describe thymus…

A: The primary lymphoid organs are the red bone marrow, wherein blood and immune cells are produced and…

Q: How is the photic energy absorbed by chlorophyll transfered to ATP molecules in…

A: Introduction - The rate of photosynthesis exceeds the rate of respiration in the photic zone. This…

Q: Cancers typically have which of the following in common?   Question 1 options:   abnormal nuclei…

A: Cancer cells are defined as the cells that grow and divide at a rapid rate abnormally.They are…

Q: crown-of-thorns starfish outbreaks on coral reefs.

A: The crown-of-thorns starfish, is a large starfish that preys upon hard,  stony, coral polyps. The…

Q: Canthium wenzelii and Canthium sp. What will happen to the two Canthium species, which have their…

A: Canthium wenzelii (Merr.) Merr. is an accepted name This name is the accepted name of a species in…

Q: Fill in the following with the correct words about cloning (the first blank will be the first word…

A: Cloning In simple terms, the term cloning is derived from the word "clone" which means "exact copy",…

Q: What is the difference between monocot and dicot leaves with its FUNCTIONS?

A: Introduction :- Seeds with a single cotyledon, parallel-veined leaves, scattered vascular bundles in…

Q: Discuss the definition, classification and variety of tumour-derived antigens

A: The cell division process in humans significantly regulates cell differentiation and proliferation.…

Q: Which enzyme can recognize an altered base in the DNA? Group of answer choices DNA Polymerase AP…

A: There are several DNA repair mechanisms are present that are- direct repair system, excision repair…

Q: why do gray squirrels prefer crushed walnuts than walnuts with shells?

A: Normal squirrels have four front teeth that never stop growing and make it easy for them to eat…

Q: Recall how Anolis carolinensis species on several islands off the Florida coast adapted to the…

A: Anolis lizards have In 15 years, these lizards' toe pads have become larger, with more sticky scales…

Q: DNA and RNA are both nucleic acids, but their structures and functions differ. Which of the…

A: Brief note on difference between structure, function and composition of DNA & RNA.…

Q: Which of the following enables ions such as sodium to cross a plasma membrane? A. phospholipid…

A: The plasma membrane is composed of a phospholipid bilayer. The lipids are arranged within the…

Q: 1. What is the significance of soaking the container in bleach? 2. What is the significance of…

A: Significance of container soaking in bleach before pouring :-

Q: Cell membranes can maintain a difference in electrical charge between the inte- rior of the cell and…

A: Cell has an electric charge difference across its membrane. The reason behind this is the unequal…

Q: Question 1. Which of the following is never found in prokaryotes? A. Ribosomes B. DNA Polymerases C.…

A: Introduction :- Ribosomes, also known as Palade granules, are macromolecular machines that perform…

Q: Approximately what percentage of DNA is noncoding? a 98% b 2% c 50% d 25%

A: DNA can be described as an organic molecule that includes genetic information as well as…

Q: draw allosteric enzyme curves comparing beta oxidation and fatty acid synthesis in the presence of…

A: Key Difference – Fatty Acid Synthesis vs Beta Oxidation  A fatty acid  is a carbonic acid  composed…

Q: Formulate a working hypothesis through if and then statement about using intangible model in…

A: Enzymes are protein molecules acting as biological catalysts that are able to accelerate the rate of…

Q: Select the barriers that contribute the difficulty of treating intracellular gram-negative bacterial…

A: Gram-negative bacteria's cell membrane is made up of 2 layers, the inner and outer membranes,…

Q: Which of the following enables ions such as sodium to cross a plasma membrane? A. phospholipid…

A: Introduction - The plasma membrane, often known as the cell membrane, protects a cell. It also…

Q: Membrane proteins perform the following functions EXCEPT one. Which One?

A: This question is based on function of membrane protein.

Q: . Briefly explain the mechanism of gene flow.

A: Gene flow is also known as gene migration. The transfer of genetic information from one population…

Q: If AaBbCC breeds with AABBCC, what is the probability of the genotype AABBCC in the offspring? O 4 *…

A: The genotype is the hereditary information passed down through generations, while the phenotype is…

Q: What are the consequences for a DNA sequencing reaction if the ratio of dideoxyribonucleoside…

A: Introduction  DNA is composed of nucleotides arranged in a specific sequence. Prior knowledge of DNA…

Q: Why did Darwin reffered to "decent with modification" rather than the term "evolution".

A: Charles Darwin is known as the father lf evolution. His work particularly focussed on finches in…

Q: Illustrate a model of female reproductive system of frog showing structures and pathways during…

A: Oviposition is a widespread process in vertebrates apart from eutherian mammals, and it refers to…

Q: Restriction maps illustrate the lengths of DNA fragments between restriction sites. Which of the…

A: Restriction mapping is a technique to map unknown segment of DNA by breakung it into small…

Q: What role does naloxone play in opioid addiction? Question 4 options: It binds opioids to…

A: Introduction Naloxone:- It is a medicine that rapidly reverses an opioid overdose, It is commonly…

Q: (0-E}E (.6254'|4=285 Signal of Grey Squirrel Observed (0) Expected (E) High pitch honest signal…

A: The chi-square (X2) test is performed to compare the observed and expected data of an experiment.…

Q: Examining Figure 20-8, explain why the rate of evolutionat nonsynonymous sites is lower. Do you…

A: Introduction A mutation is a change in an organism's DNA sequence. Mutations can occur as a result…

Q: In Gram-positive bacteria, peptidoglycan cross-link is formed by a peptide bond from the amino group…

A: Examination of bacterial cell under electron microscope reveals certain definite structures inside…

Q: Which type of point mutation does not affect the resulting protein? a deletion b missense mutation…

A: A mutation is any alteration or change in the sequence of the genetic material (DNA or RNA). A point…

Q: Each DNA sequence that can serve as an origin of replication is found to contain a binding site for…

A: On a chromosome or a plasmid, an origin of replication can be referred to as a stretch of DNA where…

Q: The prime source of chlorofluorocarbons is A. Vehicular emissions B. Industrial effluents C.…

A: Introduction - Fully or partially halogenated hydrocarbons containing carbon, hydrogen, chlorine,…

Q: The standard clotting/coagulation screen (PT, APTT, fibrinogen) and platelet count is the most used…

A: The prothrombin time (PT) test measures how well and how long it takes your blood to clot. It…

Q: Homo floresiensis fossils were discovered in_____ . a. Australia c. Indonesia b. China d. South…

A: The discovery of Homo floresiensis was largely unexpected, as most previous evidence suggested that…

Q: The last part of cellular respiration is called oxidative phosphorylation. We use the term oxidative…

A: cellular respiration is the process of ATP generation. It takes place in mitochondria. It involves…

Q: Surgical method of sterilization in a woman involves cutting and tying of: A. Ureter B. Uterus C…

A: Introduction - All forms of life and other biological agents such as prions existing in or on a…

Q: A B, and Cgenes are linked with Bin the middle. AB are 12 cM and BC are 20 cM apart. If ABdabC is…

A: If the geans are located on the same chromosome then they are called as linked genes. In this…

Q: 13. A newly identified virus infects a eukaryotic host cell without producing virions right away,…

A: A virus can be referred to as an infectious microorganism made up of a nucleic acid segment encased…

Q: If there are two genes (G and B) that determine the flower color of one plant (purple is dominant…

A:

Q: How does pest management differ from eradication? Cite an example of each

A: Pest can be described as the destructive organisms that affect the crops. Spreading of pest must be…

Q: Cyanobacteria are photosynthetic prokaryotes that are likely responsible for generating the gen-rich…

A: Answer ::   An alternative pathway for glucose oxidation is the pentose phosphate pathway (PPP). In…

Q: Which of the following enables ions such as sodium to cross a plasma membrane? A. phospholipid…

A: Plasma membrane  It is a semipermeable membrane made up of proteins, phospholipids, carbohydrates…

Q: what does the flowers change in appearance tell you about how water  moves though them in…

A: Transpiration is a cycle that includes loss of water vapor through the stomata of plants. The…

Q: The 3.6-million-year-old footprints left by bipedal walkers in Tanzania were probably made by_____ .…

A: Fossils are the ancestral remains. They can be anything such as teeth, shells, and bones. Most of…

Q: Illustrate the step by step method of preparing culture media.

A: Introduction Culture medium:- It is a liquid or gel designed for specific mixtures of nutrients and…

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: