In a cell at _______________, each chromosome consists of a pair of attached chromatids. (a) mitotic prophase (b) meiotic prophase II (c) meiotic prophase I (d) meiotic anaphase I (e) all the preceding

Q: Lean tissues are more than ____fluid by weight, compared to ______in fat tissue. A. 50%;5-10% B. 7...

A: ANSWER;- Lean tissues are more than 70% fluid by weight, compared to 10-20% in fat tissue.  

Q: What would life be like for photoautotrophs if there were no chemoheterotrophs? for chemoheterotroph...

A: Chemoheterotrophic  organisms use chemicals  as there energy source and carbon from organic compound...

Q: Can cyclic electron transport alone support photosynthesis? Explain your answer.

A: Cyclic electron transfer involves only PSI and cyt bf and was first described by Arnon. It involves ...

Q: What is the source of molecular oxygen in Earth’s atmosphere?

A: On our planet initially, there was no oxygen, and the earth's atmospheric condition was considered a...

Q: What is organic waste and why is it importnant to have less organic waste

A: Humans rely on ecosystems for a variety of unseen services. An ecosystem is important because it con...

Q: osmolarities and the water potential components

A:  Water potential is the difference in potential energy between a given water sample and pure water ....

Q: Describe the phenotype of individuals who inherit one copy of the Hbs allele and one copy of the HbA...

A: Sickle cell Anaemia is a genetic disorder in which glutamic acid in position 6 of the β chain of hem...

Q: Why are some of the specimens called specialized or modified stems? Give reasons.

A: The usual function of stem is to support the axis of the plant and provide a conduit for transport o...

Q: Explain countercurrent flow. How does it help make the fish gill the most efficient respiratory orga...

A: Counter-current flow is can be defined as the two-phase flow regime in which the working fluids flow...

Q: With a doubling time of 180 minutes and a starting population size of 10 cells, how many cells will ...

A: Given information Doubling time- 180 minutes = 3 hours. Initial population = 10 cells Final populat...

Q: Cell Cycle: Events Name the cell cycle stage in which each event takes place. Each answer choice is ...

A: When a cell divides, it goes through this procedure. The cell cycle is a sequence of processes in wh...

Q: What role do histones play in nucleosomes?

A: Introduction  Each human cell contains around 2 meters of DNA which contains about 3 billion base pa...

Q: 5. When can a mutation on the DNA cause shortening of the translation product? Give a specific examp...

A:  Mutation is the phenomenon in which the DNA sequence is altered. This may occur spontaneously. Ther...

Q: Which of the following molecules can be oxidized to produce ATP? a. amino acids d. complex carbohydr...

A: Amino acids and pyruvate together can be used for formation of 40 ATP. Complex Carbohydrates can be ...

Q: Question 4 The Arctic is an example of a harsh environment. Plants living in the Arctic are faced wi...

A: The option no. C and D are correct.

Q: Describe the role of master regulators in embryonic development

A: Embryonic development is the early stage in development when cells undergo division and the subseque...

Q: A, B, and C are three different island species and all share a common ancestor. Their ranges are sho...

A: Vicariance approach the geographical separation of a population, generally through a physical barrie...

Q: The study of the cell, its types, structure, functions, and its organelles are known as Biology Cell...

A: Cell organelles are the structures present in cell which carry out particular functions. 

Q: Propose an explanation for bacteria, chloroplasts, and mitochondria all having ATP synthase complexe...

A: Mitochondria  breaking down fuel molecules and capturing energy through cellular respiration Chlo...

Q: A Staphylococcus aureus undergoes a lac operon mutation that prevents repression of structural genes...

A: Lac operon - Lac operon or lactose operon is the DNA segment that controls the metabolism of lactose...

Q: How much of an adult's body fluid is held within the walls of the cells?  A. Two-thirds B. One-hal...

A: Introduction :- Body fluids, also known as bodily fluids or biofluids, are liquids found within the ...

Q: Compare and contrast anaerobic respiration and fermentation. Include the mechanism of ATP formation,...

A: Fermentation is a metabolic process that produces compound or chemical changes in natural substrates...

Q: Draw and label the parts of the late neurula embryos of Amphioxus/echinoderm, amphibian, avian/mamma...

A: Adenohypophysis Endostyle Notochord Nascent somite Neurenteric Canal Pronephric Kidney  

Q: Explain how an mRNA specifies the order of amino acids in apolypeptide

A: A gene is the essential physical and functional unit of heredity. They are comprised of DNA (deoxyri...

Q: Put the steps of photosynthesis in order 1. NADPH is oxidized 2. Photosystem

A: 1. Absorption of light-first step in photosynthesis is the absorption of light by chlorophylls that ...

Q: If the result of an unknown bacteria is “poor growth” and “red growth,” can this result be interpret...

A: Since you have asked multiple question, we will solve the first question for you. If you want any sp...

Q: How will the feedback mechanism in the menstrual cycle responds if there is a high level of Estrogen...

A: A feedback mechanism or feedback loop is a physiological regulation system in a living body that wor...

Q: How are bonobos and chimpanzees different? Group of answer choices A: Females dominate bonobo troops...

A: Bonobos are female-dominated, victimization sexual contact between each male and females as a form o...

Q: Compare the roles of mitosis and meiosis in various generalized life cycles.

A: Role of mitosis :  1. Development and growth : The process of mitosis is essential for growth and re...

Q: Qualitative method (transillumination) is measuring the circumference of the skull just above the ea...

A: Nervous system is a part of body system which is involved in coordination , control and transmission...

Q: 3. How do we know that expression of the information encoded in DNA involves an RNA intermediate?

A: Solution : The central dogma of biology, formulated in the 20th century after the discovery of DNA, ...

Q: 15. Which of the following is the disadvaniage of using morphological structure in classifying organ...

A: Classification of organism is classifying organisms based on their kingdom, phylum, class, order, fa...

Q: Upon identification of the DNA regulatory sequence responsible for translating a given gene, you not...

A: The regulatory proteins binding along with enhancer sequence will result in a shift that occurs in t...

Q: 3. Describe the effect of malaria on the frequency of the Hbs allele in areas where is common: in ar...

A: The RBC contain hemoglobin that is responsible for transportation of oxygen throughout the body. Hem...

Q: High-intensity, variable-resistance strength training produces no improvement in submaximal exercise...

A:

Q: Did dinosaurs and humans ever exist at the same time?

A: Homo habilis, which existed between 2.4 and 1.4 mya in Eastern and Southern Africa, is among the old...

Q: What type of defense is occurring when mucin flows off the epithelium and carries pathogens with it?...

A: The immune system in our body is responsible for protecting us. The entire immune system is divided ...

Q: Based on the following image, which concentration of antibiotic would be considered the minimum bact...

A: Minimum bactericidal concentration (MBC) is defined as the lowest concentration in which an antimicr...

Q: Write the genotype of the following individuals below based on the pedigree above. Please use letter...

A:

Q: One of the biggest obstacles to the widespread use of ultrasound for body composition estimation in ...

A: Impedance is defined as the resistance to current flow. The bioimpedance devices/techniques employ t...

Q: What is upland field for farming?

A: Farming is growing crops and keeping animals for food and raw materials. Farming is a part of agricu...

Q: What is the function of the cell membrane? To control the substances that enter and leave the cell O...

A: Introduction :- The cell membrane, also known as the plasma membrane, is found in all cells and serv...

Q: How are nucleosomes arranged in condensed 30-nm fibers?

A: The main aim of coiling and various kind of measures undertaken, making a complex structure of DNA i...

Q: Identify the stages in the eukaryotic cell cycle and describe their principal events.

A: Eukaryotes are organisms whose cells contain a true nucleus and other membrane-bound organelles. The...

Q: One of the following devices is very sensitive and very fast for measuring temperature change, it ha...

A: Thermocouple it's miles a thermoelectric temperature measuring tool made from wires of different me...

Q: Of all the possible combinations of two woodlots, the combination of Dairy Bush and the Arboretum gi...

A: alpha diversity: It refers to within habitat diversity. Beta diversity: It refers to habitat diversi...

Q: Write a descriptive introduction or brief introduction about Microbial Motility/Determination of Mic...

A: Some microbes are motile and some are not. Motility helps them to avoid danger and to obtain nutriti...

Q: What is FISH?

A: In terms of biology, fish is a marine animal that comprises only gills, backbone, and fins.  

Q: The Arctic is an example of a harsh environment. Plants living in the Arctic are faced with many cha...

A: * The Arctic has a climate with extreme variation in light and temperature and very  short summers a...

Q: hy do we need to know if an area is suceptible for herbivory and what is the indication if an area h...

A: Herbivory is an agricultural nightmare. Hard sowed plants can be uprooted in seconds by grazing anim...

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: