Daughter cell
... Telophase: Nuclear envelopes reform or cells star meiosis II Cytokinesis: Two daughter cells form ...
... Telophase: Nuclear envelopes reform or cells star meiosis II Cytokinesis: Two daughter cells form ...
CP Biology Second Semester Final Exam Review Guide
... 3. What does “true-breeding” mean? 4. Summarize Mendel’s 4 principles. 5. Be able to solve monohybrid and dihybrid story problems! a. What are the steps to solving dihybrid story problems? 6. Give 3 examples to show how dominant traits don’t necessarily mean that they are more prevalent in the popul ...
... 3. What does “true-breeding” mean? 4. Summarize Mendel’s 4 principles. 5. Be able to solve monohybrid and dihybrid story problems! a. What are the steps to solving dihybrid story problems? 6. Give 3 examples to show how dominant traits don’t necessarily mean that they are more prevalent in the popul ...
Mitosis and Meiosis
... A scientist conducted a study of an organism and found that its body cells contained 40 chromosomes. These cells were cultured in the laboratory, and cell division was observed. What di erence, if any, would the scientist expect to observe between body cell division and sex cell division in the orga ...
... A scientist conducted a study of an organism and found that its body cells contained 40 chromosomes. These cells were cultured in the laboratory, and cell division was observed. What di erence, if any, would the scientist expect to observe between body cell division and sex cell division in the orga ...
MITOSIS REVIEW
... • Prophase = nuclear envelope dissolves • Telophase = nuclear envelope reforms How could ...
... • Prophase = nuclear envelope dissolves • Telophase = nuclear envelope reforms How could ...
Slide 1
... Cystic Fibrosis Caused by recessive allele (so two copies of allele are needed). A thick sticky mucus is produced affecting air passages and digestive systems ...
... Cystic Fibrosis Caused by recessive allele (so two copies of allele are needed). A thick sticky mucus is produced affecting air passages and digestive systems ...
Gametogenesis, Fertilization and Blastula Formation
... Middle piece: contains a long, spiral shaped mitochondria which uses fructose as an energy source Tail: flagellum for movement Oogenesis The development of ova (mature, unfertilized egg cells) Begins in the embryo when primordial germ cells undergo mitosis to produce diploid oogonia Each oogoni ...
... Middle piece: contains a long, spiral shaped mitochondria which uses fructose as an energy source Tail: flagellum for movement Oogenesis The development of ova (mature, unfertilized egg cells) Begins in the embryo when primordial germ cells undergo mitosis to produce diploid oogonia Each oogoni ...
Ch 10 PPT - Old Saybrook Public Schools
... 3. Replicated chromosomes are made up of 2 sister chromatids held together by a centromere (separate but joined) 4. Sister chromatids are identical (duplicated chromosome) ...
... 3. Replicated chromosomes are made up of 2 sister chromatids held together by a centromere (separate but joined) 4. Sister chromatids are identical (duplicated chromosome) ...
Genetics - yayscienceclass.com
... copies called sister chromatids. • When the cell divides, the sister chromatids separate from each ...
... copies called sister chromatids. • When the cell divides, the sister chromatids separate from each ...
13_lecture_meiosis
... • In metaphase II, the sister chromatids are arranged at the metaphase plate • Because of crossing over in meiosis I, the two sister chromatids of each chromosome are no longer genetically identical • The kinetochores of sister chromatids attach to microtubules extending from opposite poles ...
... • In metaphase II, the sister chromatids are arranged at the metaphase plate • Because of crossing over in meiosis I, the two sister chromatids of each chromosome are no longer genetically identical • The kinetochores of sister chromatids attach to microtubules extending from opposite poles ...
How Are Traits Passed From Generation to Generation
... F1 Generation- the first generation of offspring that the parents produce. Gene- a segment of DNA that contains genetic information for making a protein Genotype- The genes in an allele pair Heterozygous- Having two different alleles of a gene pair Homologous chromosomes- a pair of chromosomes that ...
... F1 Generation- the first generation of offspring that the parents produce. Gene- a segment of DNA that contains genetic information for making a protein Genotype- The genes in an allele pair Heterozygous- Having two different alleles of a gene pair Homologous chromosomes- a pair of chromosomes that ...
Reebops - FW Johnson Collegiate
... Number of eyes? Number of body segments? Sex? 5. Your REEBOP is a very frisky creature. It likes to reproduce every semester. Find a person in class who has a set of chromosomes for a REEBOP of the opposite sex. 6. Lay both your sets of chromosomes on the table with the markings face down and ...
... Number of eyes? Number of body segments? Sex? 5. Your REEBOP is a very frisky creature. It likes to reproduce every semester. Find a person in class who has a set of chromosomes for a REEBOP of the opposite sex. 6. Lay both your sets of chromosomes on the table with the markings face down and ...
CelI/DNA Review 6-
... 13.What type of bond hold the two strands of a DNA molecule together? lX°,oOÿ-Jÿ 14.The backbone of the DNA helix is composed of alternating ? and ? ,.ÿOOtO.X' ÿ ÿOf:'l2:r-aÿ'X'O--ÿ 15. In the DNA, each nucleotide is composed of (3 things) Ak)ÿXOo.g") ÿ'ÿkÿkÿa.ÿ"- --ÿ_ÿ','ÿA--xk,(ÿ.ÿ, 16. The strand ...
... 13.What type of bond hold the two strands of a DNA molecule together? lX°,oOÿ-Jÿ 14.The backbone of the DNA helix is composed of alternating ? and ? ,.ÿOOtO.X' ÿ ÿOf:'l2:r-aÿ'X'O--ÿ 15. In the DNA, each nucleotide is composed of (3 things) Ak)ÿXOo.g") ÿ'ÿkÿkÿa.ÿ"- --ÿ_ÿ','ÿA--xk,(ÿ.ÿ, 16. The strand ...
Websearch
... the animation and read the text below the animation on this page. 11. List the stages of mitosis (Notice – there’s an extra phase here…”prometaphase” – sometimes that is added as an “in-between” phase between prophase and metaphase. In this class you are only responsible for knowing PMAT) ...
... the animation and read the text below the animation on this page. 11. List the stages of mitosis (Notice – there’s an extra phase here…”prometaphase” – sometimes that is added as an “in-between” phase between prophase and metaphase. In this class you are only responsible for knowing PMAT) ...
Twizzler Mitosis
... 4. How many chromosomes are present during prophase? 5. How many sister chromatids are present during anaphase? 6a. If your parent cell started out with 8 chromosomes, how many sister chromatids would be produced during interphase? 6b. How many chromosomes would the new daughter cells have? ...
... 4. How many chromosomes are present during prophase? 5. How many sister chromatids are present during anaphase? 6a. If your parent cell started out with 8 chromosomes, how many sister chromatids would be produced during interphase? 6b. How many chromosomes would the new daughter cells have? ...
Pedigree
... With codominance, a cross between organisms with two different phenotypes produces offspring with a third phenotype in which both of the parental traits appear together. . ...
... With codominance, a cross between organisms with two different phenotypes produces offspring with a third phenotype in which both of the parental traits appear together. . ...
Review sheet for Genetics
... 5. What is the probability that a heterozygous male for earlobe attachment and homozygous dominant female will have offspring that have attached earlobes? What is the probability that the offspring will be heterozygous? * Unattached earlobes (E) are dominant to attached earlobes (e)* ...
... 5. What is the probability that a heterozygous male for earlobe attachment and homozygous dominant female will have offspring that have attached earlobes? What is the probability that the offspring will be heterozygous? * Unattached earlobes (E) are dominant to attached earlobes (e)* ...
cells
... http://www.biology.arizona.edu/cell_bio/activities/cell_cycle/graphics/cell_cycle_animation.gif ...
... http://www.biology.arizona.edu/cell_bio/activities/cell_cycle/graphics/cell_cycle_animation.gif ...
Reproduction
... X and Y chromosomes • Not all of X chromosome corresponds with Y • Y is much shorter in length than X • Determines sex of animal – XX - female – XY - male ...
... X and Y chromosomes • Not all of X chromosome corresponds with Y • Y is much shorter in length than X • Determines sex of animal – XX - female – XY - male ...
Lecture 14 Notes CH.13
... An individual that reproduces asexually gives rise to a clone, a group of genetically identical ...
... An individual that reproduces asexually gives rise to a clone, a group of genetically identical ...
Mitosis Vocabulary Quiz
... 24. ___________________________The first stage of mitosis, in which the chromatin condenses into discrete chromosomes visible with a light microscope, the mitotic spindle begins to form, and the nucleolus disappears but the nucleus remains intact. 25. ___________________________The second stage of m ...
... 24. ___________________________The first stage of mitosis, in which the chromatin condenses into discrete chromosomes visible with a light microscope, the mitotic spindle begins to form, and the nucleolus disappears but the nucleus remains intact. 25. ___________________________The second stage of m ...
m5zn_358668247357d9e
... Like mitosis, meiosis is preceded by the replication of chromosomes (i.e. Interphase) Meiosis takes place in two sets of cell divisions, called meiosis I and meiosis II resulting in four haploid daughter cells (each having half as many chromosomes as the parent cell), rather than the two daughter ce ...
... Like mitosis, meiosis is preceded by the replication of chromosomes (i.e. Interphase) Meiosis takes place in two sets of cell divisions, called meiosis I and meiosis II resulting in four haploid daughter cells (each having half as many chromosomes as the parent cell), rather than the two daughter ce ...
Chapter 8
... § Distinguish between events in interphase, mitosis, and cytokinesis § Describe the movements of chromosomes in prophase, metaphase, anaphase, and telophase of mitosis § Define the following terms: checkpoint, chiasma, chromosome, chromatid, centromere, crossing over, homologous chromosome pair, non ...
... § Distinguish between events in interphase, mitosis, and cytokinesis § Describe the movements of chromosomes in prophase, metaphase, anaphase, and telophase of mitosis § Define the following terms: checkpoint, chiasma, chromosome, chromatid, centromere, crossing over, homologous chromosome pair, non ...
Genetic disorders
... Advantage of both: - Physicians can detect more than _________________________________ Disadvantage of Amniocentesis: most conditions are incurable and the results ____________________________________ (abortion at this time is very difficult) Disadvantage of CVS: __________________ _____________ ...
... Advantage of both: - Physicians can detect more than _________________________________ Disadvantage of Amniocentesis: most conditions are incurable and the results ____________________________________ (abortion at this time is very difficult) Disadvantage of CVS: __________________ _____________ ...
Meiosis
Meiosis /maɪˈoʊsɨs/ is a specialized type of cell division which reduces the chromosome number by half. This process occurs in all sexually reproducing single-celled and multi-celled eukaryotes, including animals, plants, and fungi. Errors in meiosis resulting in aneuploidy are the leading known cause of miscarriage and the most frequent genetic cause of developmental disabilities. In meiosis, DNA replication is followed by two rounds of cell division to produce four daughter cells each with half the number of chromosomes as the original parent cell. The two meiotic divisions are known as meiosis I and meiosis II. Before meiosis begins, during S phase of the cell cycle, the DNA of each chromosome is replicated so that it consists of two identical sister chromatids. In meiosis I, homologous chromosomes pair with each other and can exchange genetic material in a process called chromosomal crossover. The homologous chromosomes are then segregated into two new daughter cells, each containing half the number of chromosomes as the parent cell. At the end of meiosis I, sister chromatids remain attached and may differ from one another if crossing-over occurred. In meiosis II, the two cells produced during meiosis I divide again. Sister chromatids segregate from one another to produce four total daughter cells. These cells can mature into various types of gametes such as ova, sperm, spores, or pollen.Because the number of chromosomes is halved during meiosis, gametes can fuse (i.e. fertilization) to form a zygote with a complete chromosome count containing a combination of paternal and maternal chromosomes. Thus, meiosis and fertilization facilitate sexual reproduction with successive generations maintaining the same number of chromosomes. For example, a typical diploid human cell contains 23 pairs of chromosomes (46 total, half of maternal origin and half of paternal origin). Meiosis produces haploid gametes with one set of 23 chromosomes. When two gametes (an egg and a sperm) fuse, the resulting zygote is once again diploid, with the mother and father each contributing 23 chromosomes. This same pattern, but not the same number of chromosomes, occurs in all organisms that utilize meiosis. Thus, if a species has 30 chromosomes in its somatic cells, it will produce gametes with 15 chromosomes.