Two closely related species of bacteriaare found to be fixed for two different electrophoreticallydetected alleles at a locus encoding an enzyme involved inbreaking down a nutrient. How could you test experimentally whether the divergence in enzyme sequences mayhave caused differences in function and fitness?

Q: How does the flowering plant life cycle differ from that of the gymnosperms?

A: Introduction :- Conifers, cycads, Ginkgo, and gnetophytes are among the gymnosperms, a clade of seed...

Q: This flowering plant may be the nearest living relative to the ancestor of all flowering plants. (a)...

A: Angiosperms are usually defined as the way that they are supposed flowering plants that produce seed...

Q: A horse which has an allele for red fur and an allele for white fur has some white hairs on its body...

A: Allele is one of two or more possible forms of a gene that are found at the same place on a chromoso...

Q: Describe the possible roles of allosteric modulation in theregulation of metabolic pathways.

A: Enzymes are proteins that act as a catalyst, speeding up chemical reactions without changing themsel...

Q: Explain why G protein–mediated receptor systems depend onmembrane fluidity.

A: The cell membrane, also known as the plasma membrane, is made up of a double layer of phospholipids....

Q: a. The name of each level of treatment. b. A description of the type of treatment used at each level...

A: Wastewater is the waste discharge of water from various sources like household, industrial and storm...

Q: Numbers: 16 - 22 Proper disposal of waste and used supplies: 16. Used needle 17. Used cotton (withou...

A: Biomedical Waste:  Any garbage containing infectious (or possibly contagious) items is classified as...

Q: SEQUENCING Numbers 23 - 37 Correct Venipuncture Procedure: Syringe Method 23. Step 1 24. Step 2 25. ...

A: Venipuncture is a procedure of collection of blood from the vein using a needle. This process also u...

Q: Reverse transcriptases do not proofread as they synthesize DNA using an RNA template. What do you th...

A: Introduction A reverse transcriptase is an enzyme that produces complementary DNA from an RNA templa...

Q: Different species of crickets have distinct songs, andthey use these songs for mate recognition. Res...

A: Part A. The additive effects are found as: A=(XKK-XPP)/2 The dominance effect can be easily found as...

Q: A single nucleotide addition and a single nucleotide deletion approximately 15 bases apart in the DN...

A: During protein synthesis, the nucleotide sequence of the mRNA is read in the form of triplets.  

Q: How frequently are environmentally induced changes in chromatin transmitted from one generation to t...

A: The term epigenetics is associated with the study of environment and behavior causing alterations in...

Q: Suppose a cell with 6 chromosomes undergoes mitosis but not cytokinesis. Please draw a picture of th...

A: If a cell with 6 chromosomes undergoes mitosis but not cytokinesis, the resulting cell would have mo...

Q: Erwin Chargaff discovered that although the nucleotide composition of DNA varies from one species to...

A: DNA is the store house of genetic information. The segment of DNA that can produce a polypeptide is ...

Q: In test cross, the will be crossed with to determine the genotype of the dominant parent. another F ...

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

Q: In the DNA extraction. What is the purpose of squashing the fruit?

A: DNA is a double-stranded molecule kept together by weak links between base pairs of nucleotides. It ...

Q: 1. Q. How are plocoid and placeloid corallites the same? 2. Q. How are plocoid and placeloid coralli...

A: Introduction: A corallite is a skeletal cup created by a single stony coral polyp, into which the po...

Q: What causes the dark feet, ears, and nose of Himalayan rabbits? sex linkage and Barr bodies A gene i...

A: Introduction :- The Himalayan rabbit is a rare medium-sized rabbit that is sometimes confused with t...

Q: Why is the Donnan membrane phenomenon important for the homeostasis of the cell

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Q: Complete dominance at both gene pairs but either gene when dominant is epistatic to the recessive of...

A: The genes which are made of DNA is the basic unit of inheritance in organisms.  Each gene is specifi...

Q: After fertilization, the _______________ develop(s) into a fruit and the _______________ develop(s) ...

A: Fertilization in plants (flowering) is called Double fertilization in which there are two sperm cell...

Q: If a cell with 6 chromosomes undergoes mitosis followed by cytokinesis, how many chromosomes will ea...

A: Mitosis is the process of cell division in which the chromosome replicates and equally distribute in...

Q: A. Examine the crosses above and deduce the origin of G. hirsutum. Diagram your cross and give level...

A: Examine the crosses above and deduce the origin of G. hirsutum. Diagram your cross and give level of...

Q: Question 26 refers to QTL on the cricket autosomes. Forthe sex chromosomes, females crickets are XX ...

A: The female is XX and is the homogametic sex of species such as crickets, grasshoppers, and certain o...

Q: Explain how prokaryotic cells reproduce.

A: Prokaryotic cells have genetic material but no nucleus; instead, their genetic material is stored in...

Q: heart attack

A: A heart attack also know  as myocardial infarction happens when a part of the heart muscle doesn't g...

Q: DNA Replication = the location DNA replication takes place is in the DNA in the Nucleus DNA condensi...

A:   Process Where 01. DNA Replication DNA replication occurs in the nucleoplasm of the Nucleus at in...

Q: Explain how domain shuffling could occur by recombination (crossing over) of different genes during ...

A: Domain shuffling is a process where gene segments coding functional domains are shuffled between dif...

Q: Of the following molecules, which is a complex biological molecule formed by dehydration synthesis d...

A: Introduction: Evolution is the change in the inherited characteristics of biological populations ove...

Q: What are selectable marker genes ? Explain the role of selectable marker gene ?

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A: A nuclear localization sequence is an amino acid sequence that aids in protein transport (import) in...

Q: Are replicated chromosomes are positioned on the cell’s equator anaphase, metaphase, or telophase?  ...

A: Introduction: Mitosis is that step in the cell cycle where the newly formed DNA is separated and two...

Q: How does each of these small GTP-binding proteins contribute to the regulation of cell migration?

A: GTP bonding protein also known as G protein.G protein is present in eukaryotic and classifieds into ...

Q: Describe Reproductive based on adaptation and speciation. Give a real world example.

A:

Q: During which phase of meiosis does ploidy reduction occur? Does ploidy reduction occur in mitosis?

A: Ploidy reduction happens during meiosis II in the process of cell division through meiosis. Initiall...

Q: Consider the genes that specify the structure of hemoglobin. Arrange the following events in the mos...

A: Hemoglobin is present in red blood cells.Hemoglobin is made up of heme and oxygen molecule and respo...

Q: IV. In 1-2 sentences, answer the following questions: 11. How does the law of segregation and indepe...

A: Genetics is the study of genes and how attributes are given starting with one age then onto the next...

Q: Explain how new strains of flu arise

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Q: 1. What challenges could a taxonomist or systematist face especially in grouping different organisms...

A: Note- we are supposed to answer 1 question according to our guidelines. Please report other question...

Q: The astronomer Carl Sagan once said, “We are made ofstar stuff.” Explain why this is true of all lif...

A: Cosmos are composed of stars that are organized into galaxies.

Q: How can growth in aquaculture result in a proportional increase in disease problems?

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Q: Folic acid is a fundamental element required in the diet of pregnant women. Why? Describe the devel...

A: The answers to the questions are discussed in detail in step 2.

Q: What could have happened to the Tawilis (in Taal), and to its environment way, way in the past, up t...

A:   According to the IUCN red data book list Tawilis,  only fresh water sardine in the world,  was dec...

Q: There are four genotypes that are possible for a couple (Gg x Gg)'s children :  2 Gg - normal from ...

A: Introduction :- A disease is an abnormal condition that affects the structure or function of all or ...

Q: Know the relationship between exons and protein domains.

A: Introduction: Nucleic acid coding segments found in mRNA are known as exons. Non-coding segments in ...

Q: Chromosomes are visible under the microscope during cell division because, disintegration of the nuc...

A: Chromatin is the complex made up of DNA and proteins. It is found in eukaryotic cells and is respons...

Q: The null hypothesis will be rejected if O The chi-square computed is greater than the chi-square tab...

A: Null hypothesis: it is statistical theory that assume no relationship between two variables. 

Q: Given that out of the 64 codons of mRNA, 61 codify amino acids that form polypeptide chains, what ar...

A: As a result of the fact that there are 20 amino acids and 64 possible mRNA codons, some amino acids ...

Q: A person suffering from cystic fibrosis is enrolled in an experimental program where their defective...

A: Introduction: Cystic fibrosis is an autosomal recessive disorder, meaning that is not inherited sole...

Q: Red-green colorblindness is an X-linked trait. From which parent can a SON inherit the red-green col...

A: Son inherits X chromosome from mother and Y chromosome from father. Pathologies linked to X chromoso...

Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.