A culture of a certain bacterium grows according to the law of exponential growth. If there were 130 colonies after the third day of incubation and 380 colonies after the seventh day. How many colonies were in the original population? О 46 O 70 О 58 O 38

Q: Which of the following would be found inside a bacterial cel? inclusion Onucleiod Ofagella cytoplasm...

A: Bacteria is the single celled microorganisms with prokaryotic cell have no nucleus and other membran...

Q: Small, monomeric G-proteins differ from trimeric G-proteins in that monomeric G- proteins .. a) are ...

A: Receptor tyrosine kinase is a cell surface receptor-mediated by enzyme kinases. Receptor tyrosine ki...

Q: nucleic acids

A: Nucleic acids are naturally occurring chemical compounds that serve as the primary information-carry...

Q: Name ONE automated cell counter and describe its working principles

A: Cell counters that count cells automatically are known as automated cell counters. The sample is fed...

Q: Chromosomes are visible under microscope during cell division because a. Thickening of chromatins b....

A: Correct option is a.Thickening of chromatins    The nucleoli vanish, and the chromatin fibres thicke...

Q: What is the phenotypic ratio produced by the cross at after birth? a. 3:0 b.3:1 c. 1:2:1 d.all alik...

A: Short spine is caused by a new lethal gene in homozygous condition that leads to shortness of the sp...

Q: Determine the Evolutionary Relationship of Human to Other Primates and Vertebrates using a Phylogene...

A: A phylogenic tree is a diagrammatic representation of evolutionary relationship between different ta...

Q: (c) State the main function of the following: (i) Chordae tendinae (ii) Lymphocytes (iii) Seminifero...

A: A cell is the smallest unit of life. It is divided into two types: prokaryotic and eukaryotic. A cel...

Q: DNA sequences in many human genes are very similar to the sequences of corresponding genes in chimpa...

A: Convergent evolution In convergent evolution unrelated species develop similar character as they ada...

Q: Mexico Canada Alaska California What biomes do they have each? Like types of environment. I thought ...

A: Biomes of  Mexico:- Neotropical Canada:- Tundra, Desert, Grassland, Forest Alaska:- Tundra Californ...

Q: Which is an example of disruptive selection? Group of answer choices Drug resistance increases with ...

A: Answer correct answer = Panay island snails mainly have two different phenotypes, black and white sh...

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

A: The problem based on Hardy Weinberg equilibrium.

Q: 1. An individual whose genotype is AABBCC is crossed with an individual who is heterozygous for all ...

A: Given that, the genotype AABbCc is crossed with an heterozygous individual (AaBbCc). But you have as...

Q: 토 25 2 Numbers per km? (Б) 70 50F 40 125 100 75 50 400 800 1200 Density (m³) w 6) ssewoig * (wo) y1b...

A:

Q: Homo erectus,

A:

Q: The allele for red Reather color in pigeens b this is dominant to the allele fer brrown fealthers, b...

A: Alleles are the alternative forms of a gene present on same locus on homologous chromosomes.  If any...

Q: 1. COMPARE AND CONTRAST the GEL FILTRATION and ISOELCTRIC PRECIPITATION in terms of the principles g...

A: Compare and contrast the gel filtration and isoelectric precipitation in terms of the principles gov...

Q: The current genetic and fossil evidence strongly support the Multi-regional/continuity hypothesis fo...

A: Multi-regional/continuity hypothesis:- The Multiregional Hypothesis model of human evolution states ...

Q: The part of the brain controlling basic body functions such as heart rate and blood pressure is the:...

A: The human body is composed of a number of organ system. All these systems perform the various import...

Q: What happens if a cell gets trapped in the g0 phase? Provide an example please

A: Certain cells do not exhibit division and divide only occasionally as and when needed to replace cel...

Q: Question 7. What is the rate-limiting step in the formation of an actin microfilament?

A: The rate limiting step for actin filament polymerisation is nucleation, and two types of nucleator h...

Q: Virus particles are metastable because: O a. Translation is enhanced O b. It defines their host rang...

A: Virus particles are called as metastable because they have to be both stable and unstable at differe...

Q: Which of these characteristics is NOT shared by bacteria and archaea? O presence of plasma membrane ...

A: Sol: Bacteria and archaea are the prokaryotic microorganisms. They are prokaryotes because they lack...

Q: Which of the following options is the correct genotype ratio for this cross? The cross is a female w...

A: "Genetics" is the study of the functioning and main codes of variation and heredity. Inheritance is ...

Q: + DNA 1 + RNA - DNA DNA 2 3 4 + RNA - RNA + MRNA RNA 7 8

A: All the answers from 1 to 7 has been answered but number 8 has no DNA or RNA given kindly post entir...

Q: make a dichotomous key of this creature

A: The idea and practice of characterizing, identifying, and categorizing living things are commonly re...

Q: 3. In human's premature gray hair is dominant over normal hair coloring. Cross a homozygous prematur...

A: The alleles are the alternative forms of a gene that are located on the same locus of a homologous c...

Q: give a detailed description of the following organelles: a)Nucleus b)Lysosomes c)chloroplasts d)...

A: Introduction: A cell is the smallest unit of life which has a definite structure and a specific func...

Q: describe the different biotic and abiotic factors in a grassland describe the ecological relationshi...

A: Grasslands are open areas of land where grasses or grasslike plants are the prevailing species. Tree...

Q: List 4 differences between prokaryotic and eukaryotic cells, and define the terms prokaryotic and eu...

A: Cell is the  basic structural and functional unit of life . There are 2 types of cells on the basis ...

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: In cattle "short spine" is lethal shortly after birth: it is caused by the homozygous recessive geno...

A: "Genetics" is the study of the functioning and main codes of variation and heredity. Inheritance is ...

Q: significant databthat we can obtain from grasping ideas from the connectuon of extinct organisms to ...

A: When a species becomes extinct, scientists refer to it as such. Extinction aids in the development o...

Q: Write an introduction of the isolation and purification of bacteriophage with host Escherichia coli

A:

Q: Concept Check 3.1. Grey squirrels, Sciurus carolinensis, abound in upstate New York Contrary to thei...

A: Hardy-Weinberg Equilibrium is a concept that serves as a benchmark for researchers to analyze gene e...

Q: • The bacteria were identified as Pseudomonas aeruginosa, a free-living bacteria found widely in soi...

A: Cystic Fibrosis is a hereditary condition that mostly affects the lungs, but also the pancreas, live...

Q: What is the quantitative criteria for drinking water and why is virus not included in the criteria?

A: Water quality criteria have been widely established for a number of traditional water quality variab...

Q: List and describe each of the five major attributes of populations that help ecologists predict popu...

A: Ecology can be defined as the study of organisms and their interaction with each other and with the ...

Q: omponents of an ecosystem include

A: Components of an ecosystem include: - Biotic Components Abiotic Components  

Q: A mess of 40 iguanas moved to a new island which is so large that the carrying capacity is essential...

A: Total 40 iguanas moved to a new island  Growth rate = 0.6 = 60%  Generation time = 2 years  Total ti...

Q: The action potential is split into 4 parts (A-D). For each part, 1. Describe what stimulated the cha...

A: An action potential is sudden and fast change of the resting membrane potential which propagates thr...

Q: 10 um 10 um

A: A) Streptobacillus Domain - Bacteria Order -Fusobacteriales Scientific name - Streptobacillus Rank  ...

Q: Define the following terms: A) substrate B) cofactor C) coenzyme D) apoenzyme E) holoenzyme

A: Enzymes These are defined as the proteins that help in speeding up metabolism and the  chemical reac...

Q: Transmission of traits in a population and determines the extent of the environmenta effect to the a...

A: The transmission of alleles in the population is depends on different factors. The expression of all...

Q: Q113: Write a short answer for each question. • Expensive Tissue Hypothesis is an important concept ...

A: Evolution is a continuous transition of living forms, beginning with the basic forms of the past and...

Q: Hereditary ichthyosis in humans is a sex-linked trait.  If a normal male and a carrier female produc...

A: Sex-linked traits mean that the disease-causing allele is present on the "X" chromosomes. In humans,...

Q: concentration gradient diffusion  osmosis  facilitated diffusion active transport

A:

Q: what the downward and upward slopes in the graphs indicate about the contractile vacuole?

A: The contractile vacuole gathers and pumps out excess water as it accumulates in the cell.

Q: If you are using the 5 kingdom system, in which kingdom would you classify the halophiles and cyanob...

A: Five kingdom classification system was given by Robert Whittaker in 1969. He divides the diverse org...

Q: 1. Explain the statement "When environmental conditions reverse, so does the selection pressure".

A: Each organism's DNA sequence is unique. Its base-pair sequence might vary from time to time. It is r...

Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.