Some marine fishes exhibit a spectacular polyphenism, in that individuals can, under special circumstances, change their sex from female to male (in other species, the switch goes from male to female). This developmental change involves reproductive organs, hormones, and mating behavior (Warner 1984). In some species, the removal of a dominant, breeding male from a cluster of females triggers a sex change in the largest female present. Identify the apparent developmental restrictions imposed on this system, such as the requirement that a female be transformed into a male rather than some sort of intermediate sex. Speculate on the benefits associated with each restriction.

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A: The conflict of interest between the queen and her worker daughters over the generation of…

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A: The bird with four sexes can be considered as the perfect example of genetic complexity. Let's…

Q: The toolkit genes generally regulate_____ [A]_____ in order to direct development. Other…

A: The Central Dogma of molecular biology is a framework that describes the flow of genetic information…

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A: Segmentation in the Drosophila embryo is regulated by pair-rule genes and gap genes.

Q: Do genetic differences ever occur in asexually reproducing organisms? If so, how?

A: There are two different modes of reproduction namely, asexual reproduction and sexual reproduction.…

Q: Generally, sex chromosomes in male mammals are XY and females are XX. Following meiosis and gamete…

A: Meiosis is called the reduction division which divides the diploid germ cell into four haploid…

Q: In fruit flies, the dominant H allele gives rise to a hairless phenotype, hh gives rise to normal…

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

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A: Genotype is set of genes which can be inherited from parents to offsprings.Genotype determines the…

Q: What would happen if two monohybridindividuals reproduced?

A: A monohybrid cross is a genetic combination of two individuals with homozygous genotypes, or…

Q: What is considered to be the fundamental difference between males and females of most organisms?

A: The males and females of almost all species differ from one another in various characteristics.…

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A: The effect of mutation is seen if there is a single change or multiple changes. This depends upon…

Q: we discuss various mechanisms of sex determination, including the XX/XY system of placental mammals,…

A: Monotremes are egg-laying mammals that are native to Australia and New Guinea. They are the only…

Q: what is the chromosomal system for determining sex in mammals?

A: Chromosomal determination of sex It is also known as allosomic determination of sex and is based on…

Q: Based on Standard NGSS MS-LS3-2: Develop and use a model to describe why asexual reproduction…

A: Introduction :- Asexual reproduction is a type of reproduction in which an organism produces…

Q: Explain how an understanding of cell lineages in Caenorhabditis elegans aids in the identification…

A: Step 1 Caenorhabditis elegans is a free-living nematode that has two sexual forms a self-fertilizing…

Q: If the blue F1 females in Figure  are backcrossed to the blue males in the P generation, what…

A: Genotype is the genetic constitution of an individual organism. Phenotype is the observable…

Q: Why Sexual is the most important type of variation in human?

A: More variety results from sexual than from sexual reproduction. It is a result of mistakes in DNA…

Q: Set-up: Two traits in beetles Antennae shape (R rounded, r pointed) Body color(O orange, o white)…

A: Linkage is a phenomenon in which genes are present on same chromosome.There are two types of linkage…

Q: how does the  asexually produced individuals move across the landscape?

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Q: Does the difference in gene expression explain the different sexual behaviors of the two species?

A: Gene expression is defined as the process of conversion of information stored in the DNA to the…

Q: In reptiles, sex determination was thought to be controlled by sex-chromosome systems or by…

A: When the sex of an organism is determined by the temperature encountered in embryonic/larval…

Q: describe   Rapid chromosomal evolution in mice on the island of Madeira.

A: Step 1 The origin of species due to chromosome speciation is connected with the phenomenon of…

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A: Artificial insemination is the deliberate introduction of sperm into a female's cervix or uterine…

Q: what is Sex-Linked and Sexually Dimorphic Traitsin Humans?

A: DNA is the genetic material in most living organisms. It is the information hub of the cell that…

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Q: What specific observations (evidence) support the conclusions about sex determination in Drosophila…

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A: Answer :- Option (B) is correct. - XY sex chromosomes.

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A: In genetics, the genes forms the hereditary units of life. The alternative forms of the genes are…

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A: Answer:  Monohybrid cross = A cross that is made between one trait of two alleles of organisms.

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A: Meiosis is a form of cell division in which four haploid daughter cells are formed, each of which…

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A: The basic structural and functional unit of heredity is the gene. They carry genetic information in…

Q: Describe whether the trait in question is an example of intersexual selection or intrasexual…

A: Intrasexual selection occurs when there is a competition between members of the same sex usually…

Q: What differences do you expect to see in how females behave toward their brothers in haplodiploid…

A: The number of chromosomal sets in an organism's cells is referred to as ploidy. Ploidy levels can…

Q: why do the embryos of different species resemble each other?

A: The embryo is an early stage of development in multicellular organism (from fertilization to start…

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A: Genotypes are a distinct trait or combination of qualities that are determined by an organism's…

Q: What are some unique complications that can arise during specific life stages in organisms, and how…

A: Every organism goes through different life stages, starting from birth, growing into adulthood,…

Q: FIGURE 3: Anterior Posterior Gene 1 Gene 2 Gene 3 Gene 4 Genes expressed Tissue type w/

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Q: What is developmental homology?

A: Meaning of  developmental homology   Anatomical similarity due to derivation from a common…

Q: otamopyrgus antipodarum is a species of freshwater snail that has spread far beyond its native New…

A: The snails are mollusks that are classified under the large and diverse of class Gastropoda. The…