Basis of Phylum Phylum Phylum Phylum Arthropoda Comparison Nematoda Annelida Mollusca Number of germ layers Турe of symmetry Type of body cavity Турe of reproduction Туре of circulation Турe of digestive system

Q: True or False for each of the following: A. a neuronal synapse, facilitation of a post -synaptic res...

A: *Synaptic facilitation is primarily caused by changes in pre-synaptic calcium. *Increases or decresa...

Q: Trace the sequence of events in signal transduction for each of the following second messengers: cyc...

A: Introduction  Calcium is a very important ion present intracellularly. It controls various processes...

Q: How does the progeny formed from asexual reproduction differ from those formed by sexual reproductio...

A: We have to explain how does the the progeny formed from asexual reproduction differ from those forme...

Q: How does the molecular mechanism of the CRISPR-Cas systemuse a viral DNA sequence against that same ...

A: A virus is a small microscopic microorganism that can replicate inside living organism that is host....

Q: Albinism is a condition where individuals can't make melanin pigment. The affected gene encodes for ...

A: Albinism is a group of inherited disorders which can lead to no production of melanin pigment due to...

Q: For a certain chromosomal region, the mean number ofcrossovers at meiosis is calculated to be two pe...

A: For a certain chromosomal region, the mean number ofcrossovers at meiosis is calculated to be two pe...

Q: The genes S and T show complete linkage. If a heterozygous individual (whose parents were SSTT x sst...

A: As per the given information: Genotype of parents are SSTT × sstt Genotype of individual is  SsTt  s...

Q: Distiguish between 'exotoxin and endotoxin.

A: Toxins are harmful , noxious substance produced by the microbes like Bacteria that are sufficient  t...

Q: Describe the Jak/STAT signal transduction pathway

A: Answer :- JAK/STAT signalling  pathway sends signals from the extracellular flagging pathway to the ...

Q: On Neurospora chromosome 4, the leu3 gene is just to theleft of the centromere and always segregates...

A: Introduction: During the zygotene phase, a structure known as the synaptonemal complex forms between...

Q: Caroline is a 39-year old high school English teacher who weighs 141 pounds and does not get a lot o...

A: According to the question, Caroline is a 39-year old high school English teacher who weighs 141 poun...

Q: Give all of the possible organisms (that we’ve studies) and why those organisms are possibilities fo...

A: In the case mentioned above, the patient complaints of a sore throat, fever, headache, and swollen g...

Q: Illustrate with diagrams and briefly explain the proteolysis of an immunoglobulin with (i) papain, (...

A:  The glycoprotein molecules produced by plasma cells or white blood cells are known as the Immunoglo...

Q: Based on the Figure a) Draw and label the oral surface of the brittle star b) What are the character...

A: Brittle star have regeneration power in their arm that is why they named brittle star . They drop th...

Q: Suggest the aspects of reproductive health which need to be given special attention in the present s...

A: In the current scenario, the following aspects should be given special attention:  (1) Counseling an...

Q: ABC transporters (a) use the energy of ATP hydrolysis to transport certain ions and sugars (b) are i...

A: ABC transporters transport ligands across cellular lipid membranes, which is critical for most aspec...

Q: QUESTION 18 An example of Directional Selection is: O 1. Choosing "ANTH 1200" as a the highest prior...

A: In population genetics, directional selection is a sort of negative natural selection in which an ex...

Q: What do nude mice and humans with DiGeorge's syndrome have in common?

A: DiGeorge Syndrome is a primary immunodeficiency disease caused by aberrant tissue and cell migration...

Q: Incomplete dominance is characterized by a cross between homozygous dominant and recessive genes tha...

A: B. There is 1/2 chance that the offspring will have blue-colored pupils and wavy hairs. is correct a...

Q: 4.Eyelash length is an inherited trait. In the human population, there is an eyelash length gene. Th...

A: Alleles are already form of a gene that that are located on the same locus of  a homologous chromoso...

Q: Which of the following can NOT be found in the lymph node? a. Lymph follicle b. White pulp c. Cortex...

A: Lymph nodes contain a large concentration of white blood cells known as lymphocytes, which aid in th...

Q: How do we detect relatedness among species?

A:

Q: List the three traditional subdisciplines of genetics and summarize what each covers.

A: Divisions of Genetics Traditionally, the study of genetics has been divided into three major subdisc...

Q: uld be genetically transformed. The evidence that DNA was the transforming principle responsible for...

A:   INTRODUCTION           In the human body, DNA is the carrier of the genetic material. DNA is the m...

Q: What are the possible abnormal gametes the male can produce with non-disjunction occuring in Meiosis...

A: When nondisjunction occurs at the end of meiosis I,  it will result into 4 gametes; 2, n+1 gametes a...

Q: Can you explain Metacentric, Submetacentric, Acrocentric and Telocentric

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Q: What conclusion could you reach about the parents if the offspring had phenotypes in the following p...

A: Phenotypic Ratio: The correlation between the amount of offspring that will obtain certain traits or...

Q: A child has blood group O. If the father has blood group A and mother blood group B, work out the ge...

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Q: 11. Determine the Chi Square value of a dihybrid test cross that follows Mendel's Laws of Inheritanc...

A: In statistical analysis the chi-square test is performed to accept or reject a particular hypothesis...

Q: A number of retroviruses can infect certain human cells. List two of them, briefly describe the medi...

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Q: The niche is a property of a O a. species O b. community C. individual O d. environment

A: Ecology is a study of relationship in organism. 

Q: tend to occupy the base of food webs. a. mediatrophs O b. trophytrophs С. heterotrophs O d. autotrop...

A: Option D i.e. autotrophs are the base of food web.

Q: G proteins (a) relay a message from an activated receptor to an enzyme that activates a second messe...

A: The messengers present in the cell can be divided into two categories. One of the categories include...

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A: 1. Thick or dense smear less likely to to provide a good smear preparation for microscopic evaluatio...

Q: How is an extracellular signal converted to an intracellular signal in signal transduction? Give a s...

A: Signal transduction is a process in cell signaling.

Q: Which among the following is the BEST representation of a cross between a heterozygous widow’s peak ...

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Q: . What is the difference between evaporation and transpiration? Give examples of how the water cycle...

A: There are several steps in the element cycles. Introduction: Water Cycle: The water cycle refers to ...

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Q: Define, compare, and contrast the utility of microarray and RNAseq while analyzing gene expression l...

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Q: For each of the following situations, indicate which type(s) of lymphocyte(s), if any, would be expe...

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Q: The predominant type of leukocyte in human blood is th a. monocyte b. cosinophil c. basophil d. neut...

A: White blood cells (WBCs), also known as leukocytes, are immune system cells that help the body fight...

Q: Rank the following energy sources from highest to lowest carbon intensity. (1 being the highest, 4 b...

A: The increased usage of non renewable energy sources has led to the widespread air pollution and envi...

Q: Which measures should we practice to prevent spread and infection of Schistosoma japonicum?

A: Schistosoma japonicum is a significant parasite and one of the main schistosomiasis infecting agents...

Q: Why are patches in a landscape mosaic often important to people who are interested in conserving pop...

A: Dispersion of living organisms around the Earth can be used to describe the way in which a populatio...

Q: A bacterial operon is responsible for the production of the biosyntheticenzymes needed to make the h...

A: An operon is a group of genes that are all transcribed by the same promoter. Negative control means ...

Q: 220. Dr. Rose Lees is a world expert on breast cancer. Choose True or False. Of all the receptors in...

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Q: What did Maurice Wilkins’ work before working with Rosalind Franklin

A: Maurice Wilkins and Rosalind Franklin gave their great contributions in delivering the ideas that le...

Q: A child has blood group O. If the father has blood group A and mother blood group B,work out the gen...

A:

Q: K MICROSCOPY • EPITHELIAL TISSUE HISTOLOGY INTRODUCTION LABORATORY SIMULATION Labels PHASE 2: Identi...

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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.