Henrietta Lacks died in 1951, but her cancer cells are still alive today. Do you think they carry some essence of Henrietta? How do you think you would perceive cells from someone close to you that grow in culture in a laboratory...or is the idea of cells simply too remote to relate to?

Q: In the medium where E.coli was growing, lactose was added, which induced the lac operon. Then, w hy ...

A: The lac operon is a set of genes that share a single promoter (transcribed as a single mRNA). The op...

Q: Summarize the relations between genes, DNA, and chromosomes

A:

Q: How do your phenotypes compare with the most frequent phenotypes in the class population

A: there are many common traits that follow the Mendelian rules of inheritance that could be used for e...

Q: Genes a and b are 30 m.u. apart what percentage of the gametes produced by AaBb individual will be A...

A: The correct option is C = 15 %  

Q: Choose ONE trait observed in class and explain why one form of the trait is more frequent than the o...

A: A trait is considered to be dominant if it is expressed even in heterozygous state of genotype. Rece...

Q: What are predicted to be the smallest and largest amounts of warming from the RCP projections in 210...

A: ANSWER;- B) 1°C and 4.5°C explain;- wide range of climate model reproductions recommends that our pl...

Q: How does evolution affect you in your daily life? Please explain

A:

Q: f extinction is a natural part of life on Earth, why should we care about protecting endangered spec...

A: All the different kinds of life forms present in an  area is known as the biodiversity. Our earth is...

Q: .Hemophilia is a sex-linked recessive condition that results in deficient blood clotting. The diseas...

A: Hemophilia is a genetic bleeding disorder that happened by change or mutation in genes. In this diso...

Q: 8. Which of the following is a second messenger signal? to. CAMP b. IP3 DAG d. G protein-coupled rec...

A: ANSWER;- C) DAG(Diacylglycerol) Explain;- second messenger molecule incorporates cyclic AMP, cyclic ...

Q: ng to the gro

A: Genetic is the branch of biology that deals with the study of heredity and evolution. The processes ...

Q: 33. If the number of chromosomes in gametes of corn is 12. What will be the number of chromosome in ...

A: Aleurone layer is a layer of cells that shapes the peripheral layer of the endosperm which is triplo...

Q: How the structural and developmental characteristics and relatedness of DNA sequences are used in cl...

A: Scientist used to categorised animals on the basis of phenotypic character and sexual behaviour howe...

Q: focusing

A: Carse and fine adjustment  The carse adjustment knob only be used with the lowest power objective le...

Q: How does the movement of ICF K+ ions down its concentration gradient affect membrane potential?

A: In a biological cell, the difference in electric potential between inside and outside is called memb...

Q: Adaptations of plants to water scarcity

A: Due to  unfavourable conditions in desert plant adapt different strategies to survive in that harsh ...

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: 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: GC/L what does the E and GC/L stand for in water measurement?

A: EOP - electro-osmotic-pulse GCL - geosynthetic liners

Q: What is the impact of in ovo and ex ovo avian embryo culture in various fields such as medicine?  E...

A: Answer :- As we know that ovo and ex ovo avian embryo culture is evacuation of the first eggshell or...

Q: The Levins model а. considers spatial position O b. is a metapopulation model O c. all of these O d....

A: Levins model ( metapopulation model ) it is a classical however still in use it consider spatial pos...

Q: 3.Tay Sachs is a lysosomal storage disease that is inherited in an autosomal recessive manner (T= do...

A: Alleles are the alternative forms of a gene that are located on the same locus of a homologous chrom...

Q: 30. Which of the following is false regarding the intestinal hormone CCK? It stimulates the secretio...

A: CCK- Cholecystokinin is secreted by the cells of the upper part of the small intestine. The secretio...

Q: . A geneticist mapping the genes A, B, C, D, and E makestwo 3-point testcrosses. The first cross of ...

A: The trihybrid cross is another name for the three-point testcross. Three traits are crossed together...

Q: Most living organisms cannot survive at temperature above 45°C. How are some microbes able to live i...

A: Thermophile microorganisms are those that can thrive in high-temperature environments. An organism t...

Q: Explain why cyanide is toxic. How does it disrupt normal cellular activity?

A: Cyanide poisoning is a type of poisoning caused by exposure to any of a number of different types of...

Q: Write a short note on: Adaptations of plants to water scarcity

A: An adaptation is a change that worked out well for a plant or animal. Plants adapt in many ways to b...

Q: Why do you need to always focus slides initially using the x10 objective, even if you wish to use a ...

A: A microscope is a device that magnifies an object so that it can be seen by the observer. Because ce...

Q: 2. The homozygous mutant a, an allele of the albinism gene in the mouse, has a white coat and dark e...

A: "Genetic variation" is the result of the recombination of genetic material during the inheritance pr...

Q: Suppose you spot two species of birds feeding side by side, eating seeds from the same plant. You be...

A: Introduction A species is commonly defined as the largest group of organisms in which any two indivi...

Q: QUESTION 22 Which are pathways of replication leading to population variability and Natural Selectio...

A: Mutation Sudden heritable change in genetic material or character of an organism is known as mutatio...

Q: Offspring formed due to sexual reproduction have better chances of survival. Why? Is this statement ...

A: we have to explain why Offspring formed due to sexual reproduction have better chances of survival. ...

Q: a) Which of the three CD spectra matches the Ramachandran plotted protein. 25 25 25 I. II. III. 20 2...

A: Ramachandran's plot helped for evaluating the accuracy of predicted protein shape. The Ramachandran ...

Q: Need detailed information about.how classification systems have undergone several changes over a per...

A: From time to time various schemes of classification for the living beings have been proposed by the ...

Q: What areas of the brain do you think are affected when there is a decreased expression of ERα mRNA a...

A: * The estradiol is the harmone which will do protection actions. *This will help effects the long la...

Q: Make an descriptive introduction about how to handle and care for the microscope properly. What is t...

A: Microscope: it is an instrument that is used to view objects that are small and cannot be viewed via...

Q: Give a brief account of viruses with respect to their structure and nature of genetic material. Also...

A: When located outside the host cell, viruses are sub-microscopic infectious organisms with a crystall...

Q: Select the correct statement: Group of answer choices Conifers are seedless, flowering, and nonvascu...

A: Conifers are cone bearing plants, and are gymnosperms. 

Q: Based on the evidence from recordings of single neurons in the hippocampus and entorhinal cortex in ...

A: The entorhinal cortex (EC) is a part of the brain's allocortex that is located in the medial tempora...

Q: Try to trace the various components of human evolution (hint: brain size and function, skeletal stru...

A: Introduction:- With time, the human brain size increased quite significantly. Skeletal structures ha...

Q: How come c) is the answer? Wouldn't the fresh water be a hypertonic solution because it would allow ...

A: Yes,Option (C) is perfectly correct. Firstly you should understand the concept of concentration. It'...

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: What feature do all second messengers have in common?

A:

Q: Try to trace the various components of human evolution (hint: brain size and function, skeletal stru...

A: The following are the numerous aspects of human evolution:   1) Dryopithecus africans - The brain si...

Q: evolution of angler fish in different era

A: Answer :: Evolution of angler fish in different types or eras. Answers : Angler fishes use biolumine...

Q: . An RFLP analysis of two pure lines A/A • B/B and a/a • b/bshowed that the former was homozygous fo...

A: Genes are the fundamental biological unit of inheritance. They are deoxyribonucleic acid (DNA) segme...

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: Most living organisms cannot survive at temperature above 45°C. How are some microbes able to live i...

A: Mesophile is an organism that grows best in moderate temperature, neither too hot nor too cold. Cold...

Q: Explain why people who live near each other (such as East Africans and Arabians) tend to look alike....

A: People with similar economic and social backgrounds would have the same eating habits, customs, and ...

Q: Why the earth only contain the oxygen why not other?

A: Introduction There are several hypotheses presented on how life starts on primitive earth. Some advo...