Explain the concept of Sexual Selection in humans ?

Q: Under what circumstances might a lethal dominant allele persistin a population?

A: A single type of wild allele is not possible to live or to do any usual activities. This type of…

Q: About 7% of men in a population are red-green colour blind due to a sex-linked recessive gene.…

A: Color blindness is defined as the inability of the person to distinguish between colors, especially…

Q: So how can individual selection result in low reproductive rates or short life spans?

A: Individual selection is totally depends upon their adaptations. Selection is the process of…

Q: Which of the following consequences of sexual reproduction is considered disadvantageous? A. More…

A: sexual reproduction occurs when sperm from the male parent fertilizes an egg from the female parent,…

Q: If recessive alleles were beneficial, would this promote the evolution of selfing? Describe why or…

A: Breeding systems are extremely important as they affect genome evolution through genetic processes.…

Q: Explain The mating of parents with antagonistic traits produces hybrids?

A: Reproduction is the process by which an organism creates more of its own progeny. Reproduction is…

Q: How does sexual selection operate?

A: Sexual selection is an "exceptional or special case" of natural selection. The sexual selection…

Q: How can natural selection favor different phenotypes at different times?

A: Introduction  Evolution is the key process which regulates the survivability and continuity of…

Q: If evolution requires genetic variation, can populations of asexually reproducing organisms evolve?…

A: One of the defining features of living species is their capacity to evolve and evolution takes place…

Q: Explain how Darwinian evolution can decrease and increase the frequency of an allele (or a more…

A: Evolution is a natural process that includes several changes in characteristics of a species over…

Q: Explain why sexual selection is a form of natural selection.

A: Answer: Introduction: Natural selection takes place if few individuals out-reproduce others, and…

Q: Bateman (1948) and Trivers (1972) came to the conclusion that sexual selection is typically a more…

A: Sexual selection is a type of natural selection for meeting success of any species. In this type of…

Q: Is sexual reproduction required to generate the variability in structures and behaviors that is…

A: Reproduction is the process of formation of an offspring from the parent organism. Reproduction can…

Q: What is meant by “sexual selection”? a. Having an XX or XY chromosome pattern determines whether one…

A: The organisms of the present-day world are very different from the primitive organisms that lived…

Q: About 7% of men in a population are red-green colour blind due to a sex-linked recessive gene.…

A: Red-green color blindness is a genetic disorder that follows sex-linked recessive inheritance. In…

Q: Define  sexual selection?

A: The organisms that are physiologically, physically and behaviourally better fit to their…

Q: Why isn't race a meaningful concept, in terms of biology?

A: *In biology the taxonomy race which means informal rank in hierarchy * And also  it is used to…

Q: "Nonrandom mating does not itself directly change allele frequencies" Explain this ?

A: Allele frequency can be defined as the percentage calculated on basis of the number of copies of the…

Q: explain how meiosis and sexual reproduction generate genetic variability in populations?

A: Variations are the part of evolution in living cells that brings out changes in the individual in…

Q: Why is negative selection important?

A: The cells are the primary unit of life. Based on the number of cells an organism may be prokaryotic…

Q: To explain: The term sexual selection.

A: Introduction: Sexual selection is a method of characteristic choice where individuals from one…

Q: Describe an ancient hypothesis that explains how traits are passed from parents to offspring. What…

A: Answer: Introduction: Evolution is the development by which populations of organism’s changes over…

Q: Would you expect sexual selection to increase or decrease adaptation of a population to its…

A: Population can be defined as the group of individuals which belong to the same species living and…

Q: The frequency of dizygotic twinning is higher in older women. Can you think of some possible…

A: Dizygotic twinning occurs when two egg cells are fertilized by two separate sperm cells. Dizygotic…

Q: What kind of traits result from selective pressure on males from competition with other males over…

A: Sexual qualities are characteristics that evolve as a result of sexual selection.

Q: Define about Detecting Natural Selection in Populations ?

A: Natural selection is the process through which beneficial heritable traits become more prevalent…

Q: Anisogamy is the term for sexual dimorphism in gamete size.   a) Discuss the evolution of anisogamy…

A: Anisogamy, a mating arrangement characterized by male and female gametes in varying sizes, has long…

Q: Will a recessive allele that is lethal in the homozygous condition ever be completely removed from a…

A: Natural selection favors the phenotype that is favorable and often the harmful alleles are…

Q: Explain the alternative theories for the evolution of female preference for exaggerated male traits.…

A: Evolutionary developmental biology is considered a new norm in evolutionary biology. It arose from…

Q: Explain how sexual selection might lead to a)sexual dimorphism and b) members of one sex (usually…

A: (a) Sexual selection leads to sexual dimorphism as males of a species make extreme efforts to…

Q: How does sexual selection benefit the choices of mating between men and women?

A: Sexual selection is a type of natural selection in which members of one biological sex choose…

Q: Why does the relation between phenotype and genotypematter in evolution?

A: Genotype – it is the genetic constitution (a pair of alleles) of an individual. The pair of alleles…

Q: Provide 3 reasons why natural selection allows only the better alleles to be passed onto the next…

A: Evolution is the process by which an organism inherits or adapts favourable characteristics that…

Q: About 7% of men in a population are red-green colour blind due to a sex-linked recessive gene.…

A: The dominant allele is denoted as p and the recessive allele is denoted as q. Females has two…

Q: Bateman (1948) and Trivers (1972) came to the conclusion that sexual selection is typically a more…

A: Answer- (d) Females invest substantially more energy than males in gamates.  According to the…

Q: Why did Erasmus Darwin referred to sex determination as a “masterpiece of nature?”

A: Sexual reproduction is defined as a process of producing a new organism that carries the genetic…

Q: Understand the examples of species with sex-role reversal.

A: Females strive more strongly than males for availability to mates, resulting in sex-role reversal.

Q: Describe the major components of the runaway sexual selection hypothesis.

A:

Q: Which of these situations offers the lowest “opportunity for selection” for males?

A: Some situations are there due to which lowest opportunity of selection is offered for males.

Q: description of the 2 different types of sexual selection

A: Changes in some animal species male differ from female to the some species in their morphology.…

Q: Explain how Darwinian evolution can decrease and increase the frequency of an allele or a more…

A: Evolution is a natural process that includes several changes in characteristics of a species over…

Q: Sexual reproduction involves crossing-over to mix up genes. Is this a good thing or a bad thing? In…

A: crossing over describes the DNA exchange that takes place between paired homologous chromosomes (one…

Q: Relate heritability to the theory of evolution?

A: Evolution is the process by which populations of organisms change over generations. The basis of…

Q: what do diversity, crossing over and mutations have to do with the traits the humans have?

A: Diversity means that each individual is different from one another, which includes differences…

Q: The maintenance of sexual reproduction in populations is a challenge for evolutionary biologists.…

A: The evolution of sex can be divided into two major events, the origin and the maintenance of sex.

Q: Explain sexual selection (non-random mating) as a force of evolution (how does sexual selection…

A: sexual selection is the evolution of certain ui characteristics that provide a reproductive…

Q: What are the characteristics of mate preference in sexual selection?

A: Mate preferences are basically defined as the results of psychological mechanisms that encourage…

Q: Define genetic drift.

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

Sexual Motivation

Sexual motivation refers to a person's overall desire for sexual activity. It is an unusual motivation. Generally, among lower animals, the term 'drive' is commonly referred to as sexual motivation. It means a certain internal force drags the animal to be involved in reproductive behavior. On the contrary, humans are not simply driven by any internal force; rather, the sexual motivation in humans is due to several factors such as biological (hormones, genes), environmental (familial upbringing, chemical exposure) and physiological factors (culture, desire) which further determine engagement in sexual activities.