Which type of natural selection is involved in sympatric speciation? Group of answer choices A. intrasexual selection B. disruptive C.stabilizing D.directional E.intersexual

Q: A. When genetic drift and natural selection are combined what happens to the deleterious allele.  B.…

A: 1. GENETIC DRIFT- The random and directionless change in the allele frequency simply as a result of…

Q: The Grants have studied finches on the Galapagos Islabds for 40+ years. During times of drought…

A: In September, 1835, Charles Darwin stepped on to the Galapagos Islands. This led to the stepping…

Q: Which of the following evolutionary forces would be expected to increase genetic divergence between…

A: Divergence is an evolutionary process wherein a population of an inbreeding species diverges into…

Q: Number of medium ground finches 40 30 20 10 0 7.3 7.8 8.3 8.8 Average 9.3 9.8 10.3 10.8 11.3

A: Natural selection is a driving force that causes evolution.

Q: The following are necessary for a population to be in Hardy-Weinberg Equilibrium except The…

A: Introduction The Hardy-Weinberg Equilibrium States In The Absence Of Disrupting Events, That Genetic…

Q: Allopatric but not sympatric speciation requires O A. Reproductive isolation B. Geographic isolation…

A: The process of formation of new species is known as speciation. There are different types of…

Q: Which of the following is an example of gene flow? O a. horizontal gene transfer b. sexual selection…

A: Gene flow occurs when genetic material is exchanged between two or more populations of the same…

Q: Which of the following examples refers to microevolution? A.In a population of mice, individuals…

A: According to the question, we have to find the example which refers to microevolution. So, let us…

Q: Hominid brain size has increased over the last 3 million years. This is probably due to:   A.…

A: Change in beak is a directional change. Homo sapiens sapiens has the largest brain.

Q: 1. Give examples on the reproductive isolating mechanisms. MECHANISMS EXAMPLES 1. Geographic…

A: Isolating mechanism Any factors which prevents the interbreeding between even the related groups of…

Q: If two recently diverged populations come into secondary contact and attempt to breed, Is/are a…

A: Secondary contact is the geographical reunification of two allopathically distributed species are…

Q: Which of the following traits does not describe a r-selected species? O A. rapid development B. low…

A: r-selected species prefer high growth rates, usually exploit less-crowded ecological niches, and…

Q: Which of the following statement about the outcome of the evolution of a new species through…

A: Evolution by Natural Selection and by Hybridization -- Hybridization -- It is defined as the…

Q: A group of four birds flies to a new location and initiates a new colony. Three of the birds are…

A: Fixation is a change in the gene pool where 2 variants of one gene were present. The term fixed…

Q: Which of the following influences on genetic drift involve the migration of a population from one…

A: Gene is a specific nucleotide sequences in RNA or DNA. It is generally located on a chromosome. The…

Q: What is a cline?  A. A gradual change in genetic or phenotypic characteristics of a population…

A: The objective of the question is to understand the definition of a cline in the context of biology.

Q: The origin of a new plant species by hybridization, coupled with accidents during nuclear division,…

A: Speciation or divergence of species is the formation of new species that result in the formation of…

Q: What is the main cause of genetic variation between identical twins?   A. genetic drift   B. the…

A: The fertilization involve fusion of male and female gametes either internal of the female body or…

Q: Which of the following traits is more associated with an Opportunistic (Equilibrial) species?…

A: Opportunistic or R-selected species are the species that have high growth rate, have low survival…

Q: Which of the following evolutionary forces can introduce new genetic variation into a population? a.…

A: Genetic variety can be recognized at numerous levels. It is conceivable to distinguish genetic…

Q: What is true of populations that are in Hardy-Weinberg equilibrium? a. Organisms are constantly…

A: Natural selection is the preferential survival and reproduction of individuals because of…

Q: new species of snail was discovered. Your initial population genetics survey found that fA:0.48. To…

A: The conditions of Hardy-Weinberg equilibrium are:- a. Population should be large enough to reduce…

Q: When males and females of a population look or act differently (difference in secondary sexual…

A: The population can be defined as the group of similar species which live together and interbred with…

Q: ickle cell anemia is maintained in human populations because individuals with a single copy of the…

A: Answer. Sickle cell disease is a recessive inherited disorder in which the shape of the red blood…

Q: High values for heterozygosity (or expected heterozygosity) at a genetic locus in a population…

A: Heterozygosity refers to the possession of two different alleles of a particular gene or genes by an…

Q: QUESTION 23 Which of the following is NOT an assumption of the Hardy-Weinberg Equilibrium principle?…

A: It assumes conditions under which alleles frequency in the population remains constant.

Q: Which of the following types of selection maintain variation in a population?   a. Overdominance…

A: impact of heterozygote advantage to genetic variation in a population is due to heterozygote…

Q: Which of the following statements is true about linkage disequilibrium?   a. New alleles are born…

A: Introduction :- In population genetics, we study about different aspects of population at the…

Q: Two species of beetle are physically unable to mate with one another, despite being otherwise…

A: Answer - Option C - Mechanical isolation

Q: Which of the following is an example of sympatric speciation? Group of answer choices a. birds…

A: Sympatric speciation occurs when a new species evolves from a surviving ancestral species while both…

Q: If the frequency of allele 1 is 0.8 and the frequency of allele 2 is 0.2 what is the expected…

A: EXPLANATION Hardy and Weinberg described all the possible genotypes for a gene with two alleles. The…

Q: Which of the following terms best describes the biological scenario where species that look similar…

A: When species live in different environments with absence of gene flow between them, then such…

Q: Lamarck's hypothesis about how species change over time was   Group of answer choices a. based on…

A: Lamarckism's theory of inheritance of acquired traits was replaced by Darwin's natural selection or…

Q: Hardy Weinberg equilibrium (HWE) describes a situation in which the relative frequencies of alleles…

A: Hardy-Weinberg assumptions are divided into five categories: there will be no mutation, mating at…

Q: Consider a hypothetical beetle population, in which beetle colour varies along a spectrum from light…

A: Selection:  Natural selection is the process by which individuals with advantageous traits are more…

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.