Diploidy - Study guides, Class notes & Summaries

viroid - infectious agent consisting of a small circular RNA molecule that lacks a protein coat. Thought to cause disease by interfering with the cell's normal path of gene expression Common features between PROK and EUK (9) - PM, genetic info (DNA), similar mechanisms for transcription/translation, shared metabolic pathways (glycolysis, TCA), ATP, photosynthesis mechanisms, protein synthesis, proteasomes, cytoskeletal filaments built of proteins similar to actin and tubulin What are the 3...

genetic analysis exam 2 questions & answers 2024 _____ have haplo-diploidy sex determination - ANSWER-bees which organism below exhibits temperature sex determination - ANSWER-alligators ddRAD sequencing developed by this person at Harvard - ANSWER-Dr. Hockstra XXY in drosophila and XXY in humans - ANSWER-in drosophila but in humans a bar body is an - ANSWER-inactivated x chromosome visible in the nucleus of a cell that is normally from a female body XX humans & drosophila - ...

How are Darwin's ideas linked to both Mendelian and molecular genetics? - ️️ How can changes in the expression of homeotic genes affect body forms? Examples? - ️️They are the master control gene that can can turn on or off specific genes that can effect the way the organism functions an example is the sickle back fish How did Lyell influence Darwin's thought? - ️️That the earth was slowly evolving to adapt to climate changes How did Malthus influence Darwin's thought? - ️️m...

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...

Fundal height 12 weeks correct answers At symphysis pubis Fundal height 16 weeks correct answers Midway between pubis and umbilicus Fundal height 20 weeks correct answers At umbilicus Cause of discrepant fundal size correct answers Measurement error or dating error Cause of symmetric IUGR correct answers Dec fetal growth potential Cause of asymmetric IUGR correct answers Inadequate nutritional substrate availability Cause of 1st trimester loss correct answers Aneuploidy Type...

Some fungi produce spores that are dispersed by splashing water. In what ways can dispersal by splashing water be advantageous for fungal spores? - ANSWER-Improved germination rate/colonization since spores arrive with water Fungi that rely on dispersal by wind tend to produce more spores than fungi producing insect dispersed spores. Why might that be? - ANSWER-less opportunity of exploiting new habitats by insect insects can go extinct Why is it said that diploidy protects individuals, wh...

CHAPTER CONCEPTS ■ ■ The failure of chromosomes to properly separate during meiosis results in variation in the chromosome content of gametes and subsequently in offspring arising from such gametes. ■ ■ Plants often tolerate an abnormal genetic content, but, as a result, they often manifest unique phenotypes. Such genetic variation has been an important factor in the evolution of plants. ■ ■ In animals, genetic information is in a delicate equilibrium whereby the gain or loss of a ch...

Genetics Exam 2 practice exam 107 Questions with Verified Answers In five Hfr strains, each of which was used to build a time-of-entry map, the genes entered the recipient cells as follows: Strain 1: S L A C T F Strain 2: N P F T C A Strain 3: T F P N U Y Strain 4: S H Y U N P Strain 5: U N P F T C Which of the following represents a correct compilation of these results? A) S L A C T F P N H C U B) N P F T S L A C H U T C) T C A L S P N U Y H D) U N P F T C A L S T F E) S L A C T F...

Test Bank For Campbell Biology 13th Edition Urry Cain All Chapters with Answers 9) Although selection is clearly present, if the ideal equilibrium of alleles existed, what should be the proportion of heterozygous individuals in populations who live here? A) 0.04 B) 0.16 C) 0.20 D) 0.32 E) 0.80 Answer: D Topic: 21.2 The Hardy-Weinberg equation can be used to test whether a population is evolving Bloom's Taxonomy: 3-4: Applying/Analyzing Learning Outcome: 21.2, V&C 1, G2, G4 10)...

The migratory neural crest cells: - ANSWER-Form neural and non-neural structures in the periphery. Which of the following is a protein produced by a regulatory gene? - ANSWER-Repressor The formation of the fertilization membrane requires an increase in the availability of: - ANSWER-Calcium ions From earliest to latest, the overall sequence of early development proceeds in which of the following sequences? - ANSWER-Acrosomal reaction → cortical reaction → synthesis of embryo's DNA b...