As we go back in time, the number of our direct ancestors' increases but the number of humans who were alive on the planet decreases. What is this known as?   a. Biological lineage coalescence b. Reverse gene flow c. Familial merging d. Inbreeding e. None of the above

Q: genetic information

A: DNA is genetic material of bacteria. Bacterial viruses like bacteriophages or any phages contain DNA...

Q: In Figure 5-32, what do the half-red, half-blue segmentsrepresent?

A: Biotechnology is a branch of biology that utilizes biological systems that is living organisms such ...

Q: SEQUENCE 28 SEQUENCE 21 SEQUENCE 22 SEQUENCE 23 SEQUENCE 24 SEQUENCE 25 SEQUENCE 26 SEQUENCE 27

A: A phylogenic tree represents the evolutionary relationship between species or even proteins. The phy...

Q: What chemical substances compose the plasma membrane?

A: The plasma membrane is a thin, flexible barrier that separates the interior of a cell from its envir...

Q: Describe the role of pH in regulating the interaction between mannose 6-phosphate and the M6P recept...

A: The term pH stands for hydrogen potential. It is been stated that they are defined to decide whether...

Q: We have used SAR as an estimate of purity. How else could you test for the purity of the phycocyanin...

A: Phycocyanin is light harvesting, pigment binding protein isolated from algae, especially from the gr...

Q: In a longitudinal study, 100 children born on the same day were sampled in a population of interest,...

A: Introduction: The genotype is the set of genes in DNA responsible for a trait. In a way it refers to...

Q: How is it possible that a given mRNA in a cell is found throughoutthe cytoplasm but the protein that...

A: The translation is a process of conversion of mRNA into specific amino acids in the cytoplasm of a c...

Q: In a longitudinal study, 100 children born on the same day were sampled in a population of interest,...

A: Fitness: it is frequently used to define the ability of individuals or population in terms of surviv...

Q: Which of the following evolutionary mechanisms can introduce new new alleles into a population's gen...

A: Over repeated generations, evolution is defined as a variation in the genetic variation of biologica...

Q: What is the BEST explanation for why DNA replication is discontinuous at the lagging strand? А. DNA ...

A: The hetero catalytic process by which a new DNA stand synthesized on a old DNA template is known as ...

Q: What are the main respective components of cell walls in bacteria, protists, fungi and plants?

A: A cell wall is a structural layer found just outside the cell membrane that surrounds various types ...

Q: How are male gametophytes and male gametes formed in angiosperms?

A: Introduction:- Flowering plants, often known as angiosperms, reproduce in a sexual manner. Plant rep...

Q: Brown fat metabolism generates about 10x more heat than white fat metabolism True False

A: This is true that brown fat metabolism generate about 10 x more heat then white fat metabolism conta...

Q: Outline the effects the mutation of cysteine with GLY on the 3D structure and function of  the 3GRS ...

A: GLY means Glycine. Mutation of Cysteine with Glycine in its position leads to disruption of the Stru...

Q: In a longitudinal study, 100 children born on the same day were sampled in a population of interest,...

A: Introduction: Charles Darwin published, 'On the Origin of Species' which included the oft misquoted ...

Q: most STR fragments used in human forensic analysis are comprised of_____ repeats

A: STR Stands for short tandem repeats, these are short sequences in DNA that make large subunits (~100...

Q: nematodes ubiquitous

A:  Nematodes are invertebrate roundworms that inhabit marine, freshwater, and terrestrial environments...

Q: A microbial geneticist isolates a new mutation in E. coliand wishes to map its chromosomal location....

A: A mutation is a sudden change in the DNA sequence. Mutations can result from mistakes during DNA cop...

Q: 1. What two types of cells contain chloroplasts? 2. Autotrophs make their own food using energy from...

A: The chloroplast is present the plants and it contains the peigment chlorophyll which helps in the pr...

Q: What are the main cells that compose poriferans?

A: International In this question we will discuss about the main cells that compose poriferans.  

Q: The photomicrograph below shows mitotically dividing cells from whitefish (Coregonus lavaretus). a. ...

A: Mitosis is the process of cell division in which two identical daughter cells are formed  Stages inc...

Q: QUESTION 3 If a patient has hypothyroidism, but has normal iodine levels, what is the most likely ex...

A: The biochemical substances synthesized and secreted by endocrine glands or specialised cells in our ...

Q: What are the main cells that compose poriferans?

A: Introduction:- Porifera is the phylum that contains the simplest animals in the animal kingdom. Spon...

Q: What are the main respective components of cell walls in bacteria, protists, fungi and plants?

A: Cell wall It is a structural layer that surrounds some types of cells,  situated outside the cell m...

Q: What is an evolutionary tree? Is there a precise evolutionary tree that explains the emergence and o...

A: Introduction  In this question we will discuss about an evolutionary tree which is given in below st...

Q: geometry on both cand N. Trigonal plannes -- NHZ CH ーCーN eーN CH2 HN CH-C-O4 (d- carbon) HooC Asparci...

A: According to our guideline we can answer maximum 3 subparts of a question. So upload the questions s...

Q: Type I fibers are only recruited in light repetitive movements like postural adjustment and slow wal...

A: The muscle fibres have a specialised structure that helps in contraction. Usually the actin and myos...

Q: What are the main morphological differences between monocot plants and dicot plants?

A: Monocotyledons are plants with flower parts that are multiples of three, parallel leaf veins, and ad...

Q: Tristan da Cunha is a remote inhabited island in the Atlantic Ocean. On this island, 0.5% of the pop...

A: Introduction: Galactosemia is a rare genetic metabolic disorder that affects an individual's ability...

Q: Which of the following descriptions does not apply to a multicellular fungus? the mushroom is a tran...

A: *A fungus ia an eukaryotic organisms that contains microorganisms like yeasts and molds and some  mu...

Q: 1. You are studying an E. coli gene that specifies a protein. A part of its sequence is -Ala-Pro-Trp...

A: The mutation is a change in DNA sequence that is responsible for alternation of the amino acids in t...

Q: How does natural selection cause evolution? Use evidence from the chart and explain how the chart su...

A: Natural selection is the process described by Darwin   This process tells us that that certain trait...

Q: How do we know that DNA methylation is associated withtranscriptionally silent genes?

A: The imprinting is an epigenetic procedure that signifies DNA in a sex-dependent behavior and causes ...

Q: How are cell membranes classified according to their permeability?

A: Introduction permeable, semipermeable, and selectively permeable membranes are the four types of mem...

Q: List three invasive species, and describe their impacts.

A: Invasive species are those who are entered into another place or habitat as an exotic species. These...

Q: What are the main cells that compose poriferans?

A: Phylum porifera contains unique animals called sponges. They are termed as sessile metazoans as they...

Q: Glucose-6-phosphate dehydrogenase (G6PD) deficiency is a disorder that affects the normal function o...

A: Introduction: X-linked inheritance means that disease is inherited due to the gene located on the X ...

Q: What percentage of vertebrate species do mammal species make up?

A: The vertebrates are the animals in which the notochord is replaced by the vertebral column. The vert...

Q: As exercise of a set intensity occurs over several hours The ratio of fat to carb calories used stay...

A: * Exercise intensity  means the amount of energy required for physical activity per unit of time. *T...

Q: Determine what amino acid will be formed from the given DNA strand below:

A: DNA replication is the process by the DNA is copied from a template strand into a new strand. The pr...

Q: Which of the following cell junctions are involved with anchoring of the cell to the extracellular m...

A: Cell junctions are structures composed by several different transmembrane proteins, whose main funct...

Q: A Labrador retriever breeder tried to get brown and yellow puppies. She crossed a yellow female labr...

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

Q: How are plant tissues classified according to their functions?

A: Introduction  In this question we will discuss about how plant tissues classified according to their...

Q: The trans-Golgi network is the site of multiple sorting processes as proteins and lipids exit the Go...

A: Many sorting operations take place in the trans-Golgi. They have various sorting sites, such as MDCK...

Q: RabA3 mi51 RabD2.a GA1 RabA5.b RabA5.e RabA2.b ZabA1.a RabE1.e rga RabC2.b RabD1 RabE1.d RNS1 MNSOD ...

A: Rab GTPase comes under the the ras superfamily of regulatory GTPase which mainly regulates the membr...

Q: 18. A ___ is a morphological feature that some highly social strepsirrhine species have, but which C...

A: Social species: these species form cooperative society for enhancing the survival and reproduction. 

Q: Differentiate process of the reaction for capture assays. Compare to other immunoassays like competi...

A: Immunoassay: This is basically a biochemical analytical technique that help detecting and measuring ...

Q: What is the range of values for percentage of emissions from transport of food to retailers (deliver...

A: The range of values for percentage of emissions from transport of food to retailers (delivery) lies ...

Q: Gregor Mendel followed specific steps when breeding pea plants to determine the underlying cause and...

A: Introduction: Gregor Johann Mendel, an Austrian Monk, discovered the principles of heredity through ...

Evolutionary lineages

An evolutionary lineage is a series of populations of organisms that descend from a common ancestor. Each species in the lineage is the direct consequence of evolutionary change from a common ancestor. A phylogenetic tree is generally used to display lineages visually. Lineages are components of the phylogenetic tree of life. Molecular systematics procedures are widely used to predict lineages.