Mate selection - Study guides, Class notes & Summaries

ANSC 1401 Crossland Exam 3 Questions and Answers Already Passed DNA is located in the chromosome of the nucleus of the cell. True Gene Small section of DNA that codes for a specific purpose. Genome Sum of genetic material of an animal. Trait Observable characteristics Allele you receive one of these from each parent which can make a gene have various forms of genotypes and phenotypes. Mitosis somatic cell division Meiosis Development of germ cells, aka gametogenesis C...

What is relative fitness? Ans: the contribution an individual makes to the gene pool of the next generation relative to the contributions of other individuals Name the obstacles of passing on genes ("agents of selection") Ans: Survival - find food, avoid predators/ parasites, compete/cooperate with others, protection from elements Reproduction - find mate, surplus energy to make offspring, care for offspring, defend mating territor Define putative adaptation. Give an example Ans: A...

A SUBATOMIC PARTICLE HAS A NEGATIVE CHARGE AND IS FOUND IN A SHELL OF THE ATOM. WHAT IS THE PARTICLE? - AN ELECTRON MALE PEACOCKS COMPETE WITH ONE ANOTHER TO MATE FEMALE PEACOCKS. MALES WITH MORE COLORFUL TAIL FEATHERS ATTRACT FEMALE MATES AT A HIGHER RATE THAN THOSE W/O. THEREFORE MALE PEACOCKS HAVE COLORFUL TAIL FEATHERS, WHEREAS FEMALE PEACOCKS DO NOT. WHAT IS THIS AN EXAMPLE OF? - SEXUAL SELECTION A GARDENER MAINTAINS A SPECIES OF ROSE THAT PRODUCD EITHER YELLO FLOWERS ( THE DOMINANT ...

Natural Selection the process that results in adaptation of a population to the biotic and abiotic environments. Polygenic controlled by more than one pair of alleles located at different gene loci Directional Selection occurs when an extreme phenotype is favored and the distribution curve shifts in that direction. Example: resistance to antibiotics and pesticides Stabilizing Selection Occurs when an intermediate phenotype is favored. Individuals near the average are fav...

Intersexual Selection - this is where members of one sex evolve preferences for specific qualities in potential mates. This causes the members of the opposite sex who have these qualities to have an advantage and more of a choice of who they want to mate with Outline the rationale behind sexual selection including long term mate preferences - ANSWER-Although on the face of it being choosy about mates wastes time and energy in the long run it is essential. The rationale behind it is that if yo...

BIO 181 Exam 1 (Final Review)Which of the following biological organizations of hierarchical ordered complexity of life is in the correct order? - correct answer Cells, organisms, communities, biosphere. In 2006, eight grizzly bears were found to have DNA traced to one female polar bear. These bears were called, "grolar bears." This is an example of... - correct answer Gene Flow A mule is a hybrid of a donkey and a horse. Mules are sterile and cannot produce offspring, so the only way to...

BIO 202 Arizona State University -BIO 202 Exam 1 correctly answered1. _________ gametes are formed by _________ in a diploid organism. - correct answer Haploid, meiosis The earth formed 4.55 billion years ago, but living organisms did not emerge for another billion years (3.5 BYA). - correct answer True It is thought that the first macromolecule in protobionts was RNA because - correct answer RNA can replicate itself and synthesize proteins. The Miller and Urey experiment showed - cor...

AQA A Level Psychology Relationships Exam Questions and Answers 100% Pass Outline what sexual selection is - Answer-Sexual Selection is the process of selecting the right mate through competing rivals and engaging in the right behaviours in order for successful conception and child rearing. The evolutionary explanations behind this preference is important as it gives us insight on who will be chosen and who will be excluded. Outline the two ways in which sexual selection operates - Answer...

3. ________ isolating mechanisms prevent the fusion of gametes where as _______ isolating mechanisms prevent the proper functioning of the zygote. - Prezygotic, post zygotic • Adaptive radiation - o Existence of groups of closely related species that have recently evolved from a common ancestor by adapting to different parts of the environment. This is common in situations in which species occur in an environment with few other species and many available resources. o Adaptive radiation re...

Psychology 101 Exam Questions and Answers Biological Evolution -Answer-Changes that take place in the genetic and physical characteristics of a population or group of people Adaptive Significance -Answer-The effectiveness of behaviour in aiding organisms to adjust to changing environmental conditions ultimate causes -Answer-Evolutionary conditions that have slowly shaped the behaviour of a species over generations Proximate causes -Answer-immediate environmental events and conditions that...