At what phase of development would a mouse embryo appear me similar to a chick embryo? Blastula stage (blastocyst in mouse and blastodisc in chick) Never. Chickens are very different. Early gastrula stage Phylotypic stage

Q: Write testable hypothesis regarding how the quality of light (varying in wavelengths) and may affect...

A: Introduction: Photosynthesis is the process of preparing food in the presence of sunlight and chloro...

Q: In corn, kernel color is governed by a dominant allele for white color (W) and by a recessive allele...

A: Hardy Weinberg principle is used to determine the frequency of alleles in a given population. The fo...

Q: Rhesus factor is a protein found onlthe surface of the red blood cells. Having Rhesus factor (Rh+) i...

A:

Q: Which of the following is FALSE regarding interphase? O interphase is the longest phase of the cell ...

A: Cell division is of two types: Mitosis Mieosis

Q: If there are 32 sister chromatieds in a normal somatic cell, what is the haploid number for that cel...

A: Chromosome are the string like structure that comprises of DNA , histone proteins as well as heredit...

Q: Raedwald is color blind.  His four sisters and his parents all have normal color vision.  Who passed...

A: Introduction:- The X chromosome contains the gene that causes colour blindness. Red-green colour bli...

Q: (A B) D Biodiversity Biodiversity

A: In the beyond twenty years, countless examinations have explored the connection among biodiversity a...

Q: 16. Briefly compare the sympathetic and parasympathetic divisions of the autonomic nervous system. S...

A: The nervous system is divided into 2 types: 1. Central nervous system 2. Peripheral nervous system T...

Q: A function of the second messenger IP3 is to ... a) bind to and activate protein kinase A. b) bind t...

A: Introduction:- There are three steps of cell signalling.  1. Reception: A signalling molecule from o...

Q: The attack of free hydroxyl radicals on polyunsaturated fats triggers a chain reaction leading to th...

A: Introduction: Free radicals are the chemical species that have a single unpaired electron in an oute...

Q: 4. Do some Internet research to learn about the founders of both Xhale and Vestagen. To what degree ...

A: Answer 

Q: What is the Rh factor?

A: Introduction Blood types are determined by the presence or absence of particular antigens on the sur...

Q: 21. The binding of aspartate to different subunits of ATPase is an example of a. Negative cooperativ...

A: The activity of allosteric proteins/enzymes is explained by two prominent models. Monod, Wyman, and ...

Q: Solve the following parts.    a. What phase of the bacterial growth curve does a chemostat maintain...

A: Bacteria is a microorganism, found everywhere in the world.  Bacteria can be good or bad, even human...

Q: Provide at least two other examples of samples that are best prepared using Smear Preparation Techni...

A: Smear preparation is a technique that is used by spreading a small quantity of sample on the slide a...

Q: Which of the following factors accelerate cellular aging? O A. Developmental senescence in embryogen...

A: Chaperoning refers to the activities of protein synthesis, disintegration, and appropriate folding t...

Q: In rabbits, the length of the tail is governed by 3 sets of additive genes A B and C. The longest ta...

A: Given that, the tail length is governed by 3 sets of additive genes means total of 6 additive allele...

Q: In snapdragons, flower color shows incomplete dominance.  Plant height (tall or short) is a standard...

A: Introduction: Incomplete dominance is a form of intermediate inheritance in which one allele for a s...

Q: The dead outer surface of skin (not mucous membranes) uses which of the following innate defenses to...

A: Skin Barrier One of the most important physical barriers is the skin barrier, which is composed of 3...

Q: A cell has 6 chromosomes, after mitosis, one daughter cell has how many chromosomes? O 2

A: In organisms, mitosis is very much essential for tissue repairing, growth of organisms, development ...

Q: Who is the French biologist best known for the Theory of Acquired Inheritance? Group of answer choic...

A: Answer is Jeans Baptiste de Lamarck

Q: 4. Cross a yellow parakeet (bbYy) with a white parakeet. What is the genotype of and phenotype of th...

A: * Given that yellow parakeet has genotype bbYy . * So the white parakeet genotype will be BBYy. *The...

Q: ch as the heart beating and consuming oxygen. at 52.5 ml/kg/min. How many METS is she working at? Fg...

A: 37..The  statement is false  Resting metabolic rate is the amount of energy present at rest. BMR- ba...

Q: Below is a list of molecules with different chemical characteristics. Knowing that all molecules wil...

A: Introduction :- Estrogens are a class of hormones that play a critical function in women's sexual an...

Q: thin and thick blood smear analysis, what are the necessary QC involve to check and assess the integ...

A: A thick blood smear is a drop of blood on a glass slide. A thin blood smear is a drop of blood that ...

Q: Activity 7.2: Directions: Complete the diagram by filling up the words from the box. Energy Flow Pro...

A: All living organisms need energy to maintain life. The source of all energy that sustains every livi...

Q: A study of microbial pathogen transport in an aqueous environment is to be studied. The target micro...

A: In normal case, E. coli is normally found in the intestinal tract of human and animals. It is an fac...

Q: Charles Darwin developed his theory of natural selection without understanding the nature of genetic...

A: Charles Darwin gave one of the most solid theory of evolution  He proposed that the natural selectio...

Q: Explain in detail what this picture shows which part? Papillae

A: Taste buds are contained in the papillae, which are small elevated protrusions on the tongue. Filifo...

Q: What do you think is the most important type of variation and why? (Choose only one - Morphological,...

A: Answer 

Q: Describe the following stages of the cell cycle: interphase and mitosis

A: The longest phase of the cell cycle is interphase. Before entering into mitosis, the cell expands an...

Q: 3. Write down the corresponding amino acids sequence for each mRNA sequence. Use the codon chart in ...

A: Question 3 A) TAC CTA GCG CAC ATG TAG GTG GGC AAA GTT  m-RNA sequence: AUG GAU CGC GUG UAC AUC CAC C...

Q: In outline form discuss the steps of Ziehl-Neelsen staining Complete the table for National Reportin...

A: It was developed by Ziehl and later on modified by Neelsen. So this method is also called Ziehl-Neel...

Q: Once a steroid hormone binds to its receptor, the hormone-receptor complex .. a) becomes water solub...

A: Steroid hormones are secreted by three steroid glands - adrenal cortex, tested and ovaries. Steroid ...

Q: biologist is trying to infer how five closely related species of snakes are related to one another. ...

A: Animals can be easily classified based on their characters. In the given question, the character tha...

Q: Determine whether the following description is common to skeletal muscle, cardiac muscle or both ske...

A: increase in tension during contraction of the muscle organ involves recruitment of other cells 1. Sk...

Q: How does the immune process that causes hemolytic disease of the newborn take place?

A: Introduction In this question we will discuss about how does the immune process that causes hemolyti...

Q: 5. Using the hip joint reaction force example we did in class, if the moment arm for the cane is 30 ...

A: Our body's bones offer support for their mobility. A joint is a location where two or more bones com...

Q: Photosynthesis can be impacted by shifts in environmental conditions, most notal by high light inten...

A: The three fundamental sorts of photosynthesis are C3, C4, and CAM (crassulacean corrosive digestion)...

Q: How do fossils support evolution? Group of answer choices The fossil record provides evidence that a...

A: The fossils are the preserved structures of organisms in the sedimentary rocks. The sedimentary rock...

Q: Neurotransmitters must pass from an axon terminal to the next dendrite by crossing a fluid-filled sp...

A: Neurons facilitate communication in the brain. A neuron is made up of dendrites (receives informatio...

Q: . In human brown eyes are dominant over blue eyes. What type of offspring would you expect if you cr...

A: A trait is a characteristic that is unique to particular individual . A monohybrid cross is a cross ...

Q: make a dichotomous key of this creature  the format should be like this: 1. a. The creature has a ...

A: Introduction: A dichotomous key allows the person to determine the identity of an organism in the na...

Q: Radiation kills bacteria through. O A. inducing DNA fragmentation O B. inducing drought conditions O...

A: Introduction: Bacteria is a single celled prokaryotic organism. Their cell structure is simpler than...

Q: Choose the manipulation most likely to disrupt the complex behaviors of earthworms. Destruction of ...

A: Some earthworms exhibit complex behaviors, such as burrowing and mate selection. These behaviors are...

Q: Sex-Linkage The X and Y chromosomes are not exactly identical, and we should expect that there would...

A: X-linked dominant inheritance refers to genetic conditions caused by mutations in X-chromosome genes...

Q: What is the Rh factor?

A: Introduction In this question we will discuss about the Rh factor.  

Q: Which of the following is NOT an intermediate filament?   A. keratin   B. titan   C. nuclear l...

A: Intermediate filaments:- Intermediate filaments are very stable structures that form the true skelet...

Q: Orangutan sexual dimorphism includes fat deposits on the male head and face. True or False

A: In the realm of apes, orangutans are special. Just the orangutan, out of the four types of nonhuman ...

Q: What happens to the prey species when the predator species population increases? Why? Please answer.

A: The number of individuals in a population does not stay unchanged from one time frame to another; th...