Assume you are studying two different species of plants that have evolved purple flowers. You reconstruct the ancestor of these plants and discover the ancestor plant had pink flowers. You decide to investigate the development of the purple flowers

Q: Answer the following questions. a. What are the evidences that support Darwin's theory on evolution?…

A: So, before going through the questions, let's understand what evolution actually means. Evolution or…

Q: Fruit scientists are trying to determine the role of the pectinase (p) gene in a plant’s ability to…

A: The mechanism of natural selection is the adaptation and modification of living organism species.

Q: Indicate whether each of the following statements about natural selection is true (T) or false (F).…

A: Fitness is a measure of reproductive success (how many offspring an organism leaves in the next…

Q: What is neutral evolution?   A. Neutral evolution does not exist.   B. When certain…

A: The objective of the question is to understand the concept of neutral evolution in biology.

Q: A researcher compares several species of maple tree by examining the amino acid sequence of a…

A: Answer : D. The genetic makeup of the maple tree population has changed over time.

Q: Which of the following individuals would be considered to have the greatest evolutionary fitness?…

A: Introduction :_ "evolutionary fitness" refers to an individual's ability to pass on their genes to…

Q: Why are homologous traits similar?   A. they result from genetic and developmental similarities.…

A: The evolution is the alteration in the gene pool of the population from one generation to the next…

Q: A consortium of dairy and beef farmers has hired you to study the evolutionary origins of domestic…

A: Evolution is a change in the heritable qualities of natural populaces over progressive ages. These…

Q: The hoof of a horse and the claw of a cat are found to both form due to the expression of the same…

A: When the organs in different species have different functions but they arise from the same genes,…

Q: Imagine that you wanted to know if speciation rate in plant groups is linked to whether the plants…

A: Answer- Correct option is (A) Pollination is transfer of pollengrains from the anther of one flower…

Q: What type of evolution is particularly evident between predator and prey? a. Divergent evolution b.…

A: According to guidelines we have to answer the first question only. so please kindly post the…

Q: Which of the following statements about evolution is false?a. Gene mutations alone amount to…

A: Evolution is the process of slow gradual change over a period of time. The process of evolution…

Q: Which of the following most accurately describes mutations?   a. They typically have immediate and…

A: Evolution is defined as the change in trait of an individual over a period of time.

Q: You are studying the evolution of a trait in two species of snakes where both species can flatten…

A: Homologous organs are defined as the organs of different animals that are having a similar structure…

Q: Environments all over the world are changing as a result of global warming. Will this cause natural…

A: The gradual elevation in the temperature of the earth is global warming. It results from the…

Q: Which of the following conclusions are MOST likely to be supported by genetic evidence? A. Some…

A: Introduction  Genetics is the study of heredity, the process by which traits are passed from one…

Q: When comparing individuals of a population, a scientists finds a trait (A) that is shared by most…

A: Introduction  Natural selection is a process by which populations of organisms change over time…

Q: Which of the following best explains the role mutations play in natural selection? A. Most…

A: A mutation occurs when the sequence of DNA changes. Mutations can occur as a consequence of DNA…

Q: Imagine that some lizards from both islands are brought to a laboratory and lizards from each…

A: Evolution is a gradual change in species over time. It is a continuous process.

Q: Which of the following best describes Muller's ratchet?   a. Asexually reproducing lineages are…

A: Asexual reproduction is characterized by the absence of fusion of gametes, and by the absence of…

Q: If two lava TIOws are separated bya short distance (say, less than a kilomeier), how could both lava…

A: Evolution is the process of origin of new species.

Q: Refer to the evolutionary tree in the diagram. Ducks and blue jays are both types of birds.  Which…

A: Introduction :- There are two main approaches to classify the organism's :- phenetics approach and…

Q: The challenge in using sequence data to estimate the evolutionary tree for all living things is to…

A: To find evolutionary relationship in between different species we need to sequence and study their…

Q: DNA sequence data suggest that modern humans last shared a common ancestor with Old World monkeys…

A: Introduction Phylogenetics is a field of biology that investigates organisms' evolutionary…

Q: The evolutionary phenomenon known as reinforcement is most likely to occur when which of the…

A: Introduction :- Biological evolution is the change in a population's heritable characteristics over…

Q: What is neutral evolution?  A. When certain genes are present or absent in populations regardless of…

A: Neutral evolution is a concept in evolutionary biology that refers to changes in gene frequency that…

Q: Scientists conducted research to examine the evolutionary relationship between 10 bird species and…

A: GC content varies greatly between different genomic regions in many eukaryotes. A  characteristic of…

Q: Which of the following evidence is not consistent with the idea that evolution is responsible for…

A: Evolution is the process of a species' features changing over numerous generations through natural…

Q: Suppose that recessive deleterious allele is found to be much less common than its predicted…

A: Introduction The phenomenon of dominance occurs when one variant of a gene on one copy of a…

Q: You become interested in monarch butterfly conservation and begin investigating milkweeds (genus…

A: The initial stage in the construction of a phylogenetic tree involves the meticulous analysis of DNA…

Q: The most accurate definition of biological evolution from the following is... a. extinction and…

A: Evolution is defined as accumulation of inherited changes within populations over time.It refers to…

Q: When dark-colored mice from two different populations living hundreds of miles apart were examined,…

A: Several conclusions can be drawn from this observation: The adaptation for fur color in the mice…

Q: You are reading a scientific paper regarding the relationships of the anatomical and behavioral…

A: Introduction  Evolution is the gradual change in the inherited traits of biological populations over…

Q: 1.What are the mechanisms that produce change in populations across generations? 2. How does natural…

A: The physical and functional unit is usually stated to define as they are known heredity is the gene.…

Q: Which of the following statements is true? A. Evolution involves a change in gene frequencies from…

A: According to the biological theory of evolution, the diverse kinds of living creatures on Earth…

Q: In general, how does contemporary evolutionary theory account for the evolution of complex…

A: Evolution is a process through which cumulative changes occur at the genetic level in the…

Q: Consider all of the species on earth.  Some scientists believe that the genes for growth and…

A: Given:  The genes for growth and reproduction have been under evolutionary forces for longer than…

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: According to "Our Earliest Ancestors", why can’t scientists just do DNA analysis on these fossil…

A: DNA analysis is a powerful tool that can provide a wealth of information about an organism's genetic…

Q: Indicate whether each of the following conditions would tend to cause speciation to occur faster…

A: A. a small sub-group of a population becomes geographically isolated from the main population and…

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.