Briefly describe some of the defining features of the birds, reptiles, amphibians and mammals classes within the phylum chordata

Q: A mutation at the operator prevents the regulator protein from bindingWhat effect will this mutation...

A: A group of genes that are transcribed under a single promoter and an operator is referred to as oper...

Q: Name several general characteristics that could be used to define the prokaryotes.

A: All living species are made up of cells, which are the basic unit of life. Life and living things ar...

Q: Which of the following is the greatest threat to the world's Grasslands?  A. Overharvesting B. Agri...

A: Answer : the greatest threat to the world's grasslands is :  b)  agriculture 

Q: The non linear part of the Standard curve graph can be used for estimating the unknown sample protei...

A: Standard curves are graphs of light absorbance against solution concentration that can be used to de...

Q: What are mode of locomotion and general behavior especially differences between ciliate, flagellate,...

A: Numerous protist species exhibit the presence of some form of locomotory organelle, which is plainly...

Q: Compare the roles of the glycocalyx, extracellular matrix, and cell wall.

A: All living organisms are made up of cells, which are basic membrane-bound units that contain the bas...

Q: Do you agree withe the advancement of genetic engineering? Explain your answer.

A: Genetic engineering alludes to the immediate control of DNA to modify a life form's attributes with ...

Q: Would you expect to see attenuation in the lac operon and other operons that control the metabolism ...

A: A group of genes that are transcribed under a single promoter and an operator is referred to as oper...

Q: Which of the following can be answered by immunohistochemistry? Select all that apply. a. Whether BD...

A: Few important points : Immunohistochemistry is basically a localization of known antigen in tissue ...

Q: Virology: Which class of viral fusion proteins are perpendicular to the viral membrane?

A: Introduction:- Viral fusion:- Depending on the cellular environment and tissue organization, this v...

Q: When it comes to adaptation, survival of a species' trait through artificial selection depends on a)...

A: In artificial selection, human influence is involved.  This is identified by humans of desirable tra...

Q: From the fungal cross arg-6 ⋅ al-2 × arg-6+ ⋅ al-2+, whatwill the spore genotypes be in unordered te...

A: Introduction: Inheritance is a term used to describe the process by which a parent's traits are pass...

Q: What are the functions of the glycocalyx?

A: The glycocalyx, also known as the pericellular matrix is a highly charged coating of membrane-bound ...

Q: Compare the pattern of early growth that occurs in eudicots andmonocots after germination

A: The embryonic stage of a plant's life is represented by the seed. The embryo (immature seed), endosp...

Q: Exceptions to the universality of the genetic code were once thought to be rare, but more and more e...

A: There are two forms of genetic coding. RNA codons or DNA codons can be used to express the genetic c...

Q: 1. Describe the movement of amoeba on microscopes. 2. Describe the movement of the euglena on micros...

A: Under microscope, amoeba draw and withdraw the pseudopods while changing shape called amoeboid movem...

Q: answer

A: Anthropogenic climate changes stress importance of understanding why people harm the environment des...

Q: Organizations that aim to protect the rights of animals have been battling leisure breeders to stop ...

A: Animal breeding is basically a type of animal science which help in development of superior animal l...

Q: Why is transcription a particularly important level of gene regulation in both bacteria and eukaryot...

A: Transcription is the process in which formation of mRNA take place on a DNA template. This process i...

Q: 6. Suppose a particular gene is required for early development and also later for development of a p...

A: ANSWER;- The Gal4 (galactose) gene articulation is directed by Gal80. The Gal4 gene protein initiat...

Q: What is the difference between a cell strain, a cell line, and a clone?

A: All living organisms are made up of highly organized structures known as cells and the cells are des...

Q: How does a neuron know which cell to form a synapse with?

A: The neuron is a cell present in the nervous system that is accountable for receiving and transmittin...

Q: What are the pointed structures thanks

A: 1 - Howships lacuna 2 - Osteoclasts 3 - Osteoblasts

Q: What are heme component of cytochromes?

A: Cytochromes are monomeric proteins containing the heme c moiety. Histidine and methionine comprise t...

Q: Male side-blotched lizards display throat color polymorphisms; some males have orange throats, some ...

A: Allele frequency: allele represent the alternative form of a gene. It is measured by- Allele frequen...

Q: They carry oxeganated blood away from the heart,while capillaries?

A: Blood vessels referred to as the tubular channels from which blood get transported all over the body...

Q: In figure 4-7 why does facilitated diffusion have a maximum rate of diffusion?

A: In facilitated diffusion, transport of substances across a biological membrane takes place which occ...

Q: why is Tetramethrin good to use in your garden?( what are the benefits) why might it be better than ...

A: Tetramethrin is a synthetic insecticide belonging to pyrethroid family.  It affects the nervous syst...

Q: How is it that only a few transcription factors can initiate cell type specific gene expression?

A: Transcription is the process of copying (transcription) a gene's DNA sequence into an RNA molecule. ...

Q: Blood types A and B are codominant, O is recessive. Rh factor is determined by a different gene. The...

A: The phenomenon by which both the alleles are fully expressed in Heterozygous condition is called cod...

Q: Which group of invertebrates is most closely related to vertebrates? A. molluscs B. anneli...

A: Mollusca This is the second largest animal phylum. Are terrestrial and aquatic having an organ syste...

Q: Which of the following describes the difference between genetic maternal effect and cytoplasmic inhe...

A: Maternal is a term related to the mother. 

Q: What if the purpose of bacterial culture? Why might it be useful to grow bacteria?

A: According to question what is  the purpose of bacterial culture. Why might it be useful to grow bact...

Q: Define about DNA Transposons ?

A: DNA is a material found inside cells that transports genetic information and transmits it from gener...

Q: H,0 Pure water Positive pressure Negative pressure H,0 H20 H,0 Solute A В C

A: Water potential: it is the potential energy of water per unit volume in comparison to pure water und...

Q: 1. How many spermatids are formed from 10 spermatogonium B?  a. 20 b. 40 c. 80 d. 160 2. Oogenic gr...

A: Spermatids These are haploid cells that are produced through the second division of a spermatocyte. ...

Q: what blood types would have the best and worst odds of finding a donor?

A: *Types of Blood groups are : A type of blood group(A positive and A negative) B type of blood group...

Q: What is known as catabolite repression ?

A: Certain terms are fundamental concepts and terms used in biology, which is the study of life and liv...

Q: Explain why mutations in the lacI gene are trans in their effects, but mutations in the lacO gene ar...

A: "Gene regulation" is described as "any type of modification in the gene that results in a different ...

Q: 4. In Drosophila melanogaster the wild-type eye colour is dark red. A pure-breeding mutant strain wi...

A: Inheritance or heredity is the passing-on of one trait form the parents to the progeny by either ase...

Q: When a protein folds, it forms a more ordered structure. Why does this phenomenon not violate the se...

A: According to thermodynamics' second rule, any energy transfer or change increases the universe's ent...

Q: Explain the major events involved in tissue repair

A: Nerves, tendons, and ligaments are the most usually injured and compromised tissues. Such accidents ...

Q: The difference between arteries in your body and the pulmonary artery is the following: O The pulmon...

A: Introduction Arteries and veins (also known as blood vessels) are muscular tubes through which blood...

Q: Which of the foll owing characteristi cs about homologous chromosomes in somatic cells is false? O T...

A: Option 1 is the correct answer as alleles can be different.

Q: The ethical concerns about biotechnology shows that A religion and science are not supposed to inter...

A: There are a number of issues that have been raised from modern biotechnologies. These issues are: P...

Q: Capillary Refill Results: Table 2 Right Hand Refill Time Left Hand Refill Time Thumb Middle Pinky 1....

A: Capillary refill test is a rapid test used for assessing the blood flow through peripheral tissues.I...

Q: dominant trait (coded "T") with shortness as the recessive trait (coded "t")

A: The parents will have genotypes as TT( homozygous tall parent ) and Tt( heterozygous tall parent )  ...

Q: 5. Describe the difference between how identical twins and fraternal twins (non-identical) produced ...

A: Introduction :- The term "twins" refers to two children born from the same pregnancy and delivery. M...

Q: Can the compound cause expression for each gene.

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

Q: You have a starter culture containing 8 x 109 cells per mL, from which you take 10 mL to inoculate a...

A: The generation time of culture is considered to be the time at which it doubles and the mean growth ...

Animal Phylogeny

Cladistics is a method of biological classification where organisms are classified based on their ancestors and their relationship with them. It is defined as the concepts and methods for determining the branching patterns of evolution and evolutionary history. Some scientists, however, have preferred the term phylogenetic systematics or phylogenetic taxonomy to emphasize the reliance on a phylogeny for classification. It is the most common and accepted method for classifying organisms.