Zygote - Study guides, Class notes & Summaries

NBDHE- Embryology and histology (StudentRDH) Questions And Answers A+ Embryology - ANS-study of prenatal development, from fertilization to birth. Prenatal development - ANS-usually divided into trimesters (each lasting 3 months), but can also be divided into three periods (preimplantation, embryonic, and fetal) marked by changes in the development. -First trimester includes preimplantation and embryonic period Preimplantation period` - ANS-first week of conception. Embryonic period - A...

HESI A2 Biology 2023 Questions and Answers 100% Pass Where is the cell replicated at? cytoplasm What is the highest level of magnification on a scope? 10X Animal cells have what?? Eukaryotic cells The Mitochondria is considered the powerhouse of cells because... It makes ATP In plant cells What is the organelle that is the protective barrier? The cell wall Channel protein used to help more substances from high to low concentrations (without water) is? Facilitated Diffusion What cell regul...

What are the events that take place in a sexual cycle and why is this cycle significant? Ans: -Gamete formation (1n Haploid) -Fertilization (Syngamy) of gametes. -Zygote formation. Zygote is first 2n (Diploid) cell. Then recombination occurs (Basically, Haploid cells (Gamete and spirm) form to create Diploid cell (Zygote)) What is the first supergroup? Ans: Excavata What is asexual reproduction? Ans: One parent, and offsprings are identical clones to parent. What are the 3 organisms of...

asc 101 exam 2 questions & answers 2024/2025 which of the following is not a male accessory sex gland? a) ampulla b) seminal vesicles c) vas deferens d) prostate gland e) bulbourethral glands - ANSWERSc) vas deferens which of the following lists the stages of embryo development in order of appearance? a) morula, egg, zygote, blastocyst b) blastocyst, egg, morula, zygote c) zygote, morula, blastocyst, egg d) egg, zygote, morula, blastocyst e) zygote, blastocyst, morula, egg - AN...

karyotyping - number and type of chromosome present Barr body - -condensed inactive X chromosome near nucleus of cell -all females have 1 Barr body nondisjunction - failure of chromosomes to separate during meiosis autosomal nondisjunction - -failure of chromosomes (other than sex chromosomes) to separate during meiosis -exs: trisomy 21, trisomy 18 translocation - portion of one chromosome is transferred to another (usually nonhomologous) abnormal egg (XX) x normal sperm (X) - -...

BIOD 121 MODULE 6 EXAM LATEST UPDATED 2024 key developmental stages - Fertilization Blastogenic stage Embryonic stage End of first trimester Fetal Stage Tobacco use can - increase the risk for miscarriage, stillbirth, preterm delivery, and low birth weight infants Alcohol use - is linked to a risk for fetal alcohol syndrome, which results in physical and mental disabilities and growth retardation drug use - increases the risk for low birth weight, preterm delivery, miscarriage...

Importance of plants Correct Answer-food, natural products, ecosystem services (oxygen, ozone, coal), culture Preadaptations of Charophytes Correct Answer-fresh water spores covered in sporopollenin, life cycle allows dispersal by wind (spores) Gametophyte Correct Answer-haploid (n), makes gametes by mitosis Sporophyte Correct Answer-diploid (2n), makes spores by meiosis Alternation of Generations Correct Answer-Gametophytes go through mitosis to create gametes, which form zygote, zy...

Animals Ans: Multicellular eukaryotes Heterotrophs: Ingest their food Lack Cell Walls Body held together by structural proteins Collagen Ans: Make up connective tissues (fibers) Flexible and high tensile (stretching) Skin Ans: Dense irregular arrangement of collagen Ligament Ans: Collagen arranged in sheets (Connects Bones) Tendon Ans: Cable-like arrangement of collagen (Connects muscle to bone) Zygote Ans: Fertilized egg (Sperm+Egg=Zygote) Undergoes rapid cell division cal...

New individuals are created when ___________________________ a. Gametes combine b. Genes combine c. Meiosis occurs d. Mitosis occurs - ANSWERA. Gametes Combine When sperm and ovum unite at conception, the resulting cell is called a: a. Gamete b. Gene c. Zygote d. Blastocyst - ANSWERC. Zygote Monozygotic - compared to dizygotic - twins develop when: a. Two ova are released from the mother's ovaries b. Two sperm fertilize the same egg c. A zygote separates into two clusters of ...

mollusca body plan shared features -foot: mass of muscle tissue used for movement and/or manipulation -visceral mass: clump that contains most of the organs -mantle: tissue that drapes over the organ clump and secretes the shell in shelled members 4 characteristics shared by all animals -eukaryotic- membrane bound nucleus and organelles -multicellular -heterotrophic- consumes food to get energy -have tissues that develop from embryonic layers (germ layers) germ layer formation step 1 spe...