Prophase i Study guides, Class notes & Summaries

Sister chromatids are which of the following? a. Found right after a cell divides. b. Formed when chromatids separate during cell division. c. Unique to prokaryotes. d. Tightly linked together at a centromere. e. Made only of DNA - Answer-d. Tightly linked together at a centromere. Looking into your microscope, you spot an unusual cell. Instead of the typical rounded cell shape, the cell has a very narrow middle separating two bulging ends. It sort of looks like the number 8! Then you re...

BIO 100 LAB FINAL QUESTIONS WITH VERIFIED SOLUTIONS What are the steps of the Scientific Method? Observation, formulation of a question, hypothesis creation, experimentation, repetition, and data analysis How do you calculate total magnification? 4 x 10 = 40x 10 x 10 = 100x 40 x 10 = 400x Can any characteristic be used in an analytical key? Only observable characteristics What is taxonomy? The science of classifying organisms using a binomial system What is diffusion? The mov...

acrocentric Refers to the terminal location of the centromere on chromosomes 13, 14, 15, 21 and 22 allelic heterogeneity the situation in which multiple alleles at a singe locus can produce one or more disease phenotypes amorphic Refers to mutations that cause a complete loss of function for the respective gene, and therefore yield the same phenotype as a complete gene deletion Aneuploidy denotes any unbalanced chromosome complement antimorphic Refers to mutations that when present in h...

Cell Cycle An ordered sequence of events in the life of a cell Mitosis A process of nuclear division in eukaryotic cells conventionally divided into five stages: prophase, prometaphase, metaphase, anaphase, and telophase. Mitosis conserves chromosome number by allocating replicated chromosomes equally to each of the daughter nuclei. Cytokinesis The division of the cytoplasm to form two separate daughter cells immediately after mitosis, meiosis I, or meiosis II. Cell Division The reproduct...

FTCE Biology Practice Exam Questions with 100% Correct Answers During which phase of mitosis do tetrads form? a) prophase I b) prophase II c) metaphase I d) metaphase II - Correct Answer ️️ -a) prophase I The result of meiosis and cytokinesis is: a) two haploid (1n) cells b) four haploid (1n) cells c) two diploid (2n) cells d) four diploid (2n) cells - Correct Answer ️️ -b) four haploid (1n) cells What is the complementary sequence to this segment of DNA: 5' CGTTAGGAATAC 3...

IB BIOLOGY GENETICS LATEST 2024 GRADED A+ Gene a heritable factor that controls a specific characteristic. Allele one specific form of a gene, differeing from other alleles by one or a few bases only and occupying the same locus as other alleles of the gene. Genome The whole of the genetic information of an organism gene mutation a change in the base sequence of a gene. Base substitution The smallest possible change is when one base in a gene is replaced by another. An exampl...

BSC 120 Chapter 15 Review Practice Test Correctly Answered. Random orientation of homologous chromosomes occurs in __________ of meiosis. - CORRECT ANSWER metaphase I metaphase II prophase II anaphase I prophase I Consider a cell that has four pairs of chromosomes. How many orientations of all chromosomes are possible during meiosis I in that cell? - CORRECT ANSWER 32 16 8 24 4 Consider a cell that has three pairs of chromosomes. What fraction of the gametes produced from this...

Prophase I - crossing-over occurs between tetrads Metaphase I - Paired homologous chromosomes line up across the center of the cell Anaphase I - Spindle fibers pull each homologous chromosome pair toward an opposite end of the cell Telophase - A nuclear membrane forms around each cluster of chromosomes and cytokinesis follows, forming two new cells Prophase II - Chromosomes consist of two chromatids, but they do not pair to form tetrads Telophase II - A nuclear membrane forms around each ...

ADH: always digging holes. this is an easy way to remember that antidieuretic hormone allows reabsorption of water from kidneys, therby concentrating the urine. caffeine and alcohol are ADH blockers Anterior Pituitary Hormones "FLAGTOP" F: Follicle Stimulating Hormone L: Luteinizing Hormone A: ACTH G: Growth Hormone T: Thyroid Stimulating Hormone O: MSH - melanOcyte stimulating hormone P: Prolactin FSH in males directly stimulates spermatogenesis - sperm look like "FiSH." In fem...

IB Biology Latest Update with Verified Solutions genotype the alleles of an organism phenotype the characteristic of an organism dominant allele an allele that has the same effect on the phenotype when present in both homozygous and heterozygous states co-dominant alleles pair of alleles that both affect the phenotype when present in a heterozygote recessive alleles an allele that only has an effect on the phenotype when in homologous state locus the particular position on...