In this experiment materials Mendel used peas, also their were 60 generation used. Using peas he start breeding, he was looking for many different traits, such as color, texture, height and many more. Once he have pure breed or true breed he would more likely to run experiment and cross two pure breed. On of the experiment was done by Mendel was crossing Pure breeding green with pure breeding yellow peas. When offspring grow, he found that all the next generation peas were yellow, also known as F1. Next to explore further Mendel took 2 gene form F1 generation and breed them together. When F2 generation arrive 75% of peas were yellow where 25% were green, which mean ¾ of peas were yellow and ¼ were short. Green peas despiser in F1 and then reappear in F2, he thought because of gene. Gene are a section of DNA that controls a …show more content…
In this case yellow is dominant and green is recessive. Pure breed make offspring that had green and yellow alleles but only yellow show because it was dominant. For that when F1 generation breed there was change to green alleles to reappear. Alleles are variation of a gene. Also, to represent dominant alleles Mendel use capital letters and recessive alleles are lower case. If dominant and recessive alleles are together they are known as heterozygous. Heterozygous mean they have different alleles, but if both alleles are same they known as homozygous. This lab includes Dominant phenotype and recessive phenotype. Phenotype is the physical appearance. Also, in this lab dominant phenotypes are yellow seeds, smooth seeds, tendrils, dentate leaves, normal, stipules, tall. Where recessive phenotypes were green seeds, wrinkled seeds, terminal leaflets, smooth leaves, reduced stipules, short. On the other hand, genotypes is the set of genes in our DNA, they are also responsible for particular trait. Also, phenotype and genotype is fundamental to the understding of heredity and development of
Introduction The bean beetle also known as the Callosobruchus maculatus, is an agricultural pest insect from Africa and Asia. That can be found throughout the tropical and subtropical regions. The lifecycle of a bean beetles is quite short an adult been beetle lays their eggs on the external surface of a bean. The larva hatches from the egg burrows from the egg through the seed coat and into the bean endosperm without moving outside the protection of the egg.
In lab we were introduce to the Fruit Fly Genetics experiment. We had to observe, and learn the life cycle and the stages of the fruit fly. Throughout the experiment we had to learn the different traits of males to females, white from red eyes and miniature from normal wing size. In this experiment we were paired up in partner's, and each of us had to separate males flies from females. The way that we were able to determine their gender was by knowing that males have black sex combs on their front leg.
This means that the G0 female population had the genotype w+w+ for red-eyed and ww for the white-eyed fruit flies. On the other hand, male fruit flies only have one X chromosomes with the other sex determining chromosome is Y. Red-eyed males would have the genotypes w+Y and the white-eyed males would have the wY genotype. This means that when looking at the male fruit fly it can be easy to determine the eye color allele with the naked eye. Due to the gene being X-linked the allele frequency for both eye color alleles can be calculated for males, unlike females as a red-eyed female could have either the w+w+ or the w+w genotype ().The Hardy-Weinberg equilibrium states that the genotype and allele frequencies within a population will stay constant from each generation when there is a lack of evolutionary influences, such as genetic drift, mutation, and mate choice
Q. is the disease state dominant or recessive? Explain. A. polydactyly is a dominant but rare disease, it’s caused by a dominant allele of a gene. It can also be passed down if one of the parents have the disorder.
The tan spore gene has a t+ for the wild type allele, and the mutant allele t. The black ascospores genotype is g+t+, gray will have the genotype g t+ and the tan will be g+t, and colorless genotype will be g
Mika Nijhawan 9/29- 10/10 2 MENTOS AND SODA LAB REPORT State the Problem Does the type of soda affect the size of the explosion, after mentos are added? Develop a Hypothesis If seven mentos to a 2L bottle of Diet Pepsi, then it will create the biggest geyser out of Coke, Fanta, & Root Beer because Diet Pepsi has potassium benzoate, aspartame, and the carbonation which react to mentos. Design an Experiment Materials List: 1 clear test tube 35 original flavored Mentos candies (2 1/2 rolls) 1 3x5 index card 4 2L bottles of soda (all different flavors/types) 1 2L bottle of soda water 1 100 mL graduated cylinder 1 400 mL beaker 1 pair of tweezers (preferably large) 1 small container Procedure: Stack seven mentos in the test tube When given permission take the test tube, soda bottles, index cards, and the remaining 25 mentos, to the designated area Place one of the four soda bottles on a flat area Open the soda bottle and place the 3x5 index card over it With the index card over the soda bottle, flip the test tube over and place it on the index card, so the test tube is lined with
For example, the dominant genes that I have are brown eyes, dark brown hair, my height, my skin color, oily skin and my acne. These are the dominant genes that I got from my mom and dad. The dominant genes are practically the genes that overpower the recessive genes from the other person or from recessive genes they had from there parents. Another example, the recessive genes that I have are my nose, lips, that's pretty much of what I can think of. Mostly the dominant genes that I have are from my dad's side of the
The purpose of this lab was to measure the amount of CO2 gas given off by germinated peas under certain conditions of light. We conjectured that the more amount of light the peas are exposed to, the higher the respiration rate they will have. Our data supported this because it showed that the germinated peas that were exposed to light 24 hours before the experiment had a steeper slope (as seen in table 1), therefore having a greater respiration rate. The peas that were not exposed to any light 24 hours before the experiment had a reduced rate because of its lack of exposure to light. Both pea’s respiration rates showed that the more light the peas were exposed to, the greater respiration rate they would have (Figure 1).
5. How do the processes of meiosis and fertilization produce genetic variety? During the meiosis stage of crossing over, the maternal and paternal homologous chromosome segments are being exchanged. During independent assortment, different genes independently separate from one another.
In “An Indian Father’s Plea” by Robert G. Lake-Thom, Lake-Thom uses transitions to help connect his ideas and create a well written essay. In the twelfth paragraph the author discusses the knowledge that his son possessed before he began going to the school he is currently attending. Since Lake-Thom is listing the knowledge his son possessed before starting at that school he uses the transitional expression “and” frequently in this paragraph. Lake-Thom also repeatedly uses the transitional expression “but” when he says that while his son may not be able to do something that other non-Indian children his age can do such as writing their names he has knowledge of other things that those children don’t have. He also begins multiple sentences with
Drosophila is a fly species that is used in genetics. Since Drosophila goes through life cycles extremely quickly, it is one of the best specimens to use in a multiple generation experiment. The purpose of this experiment is to follow the genetic phenotype of the offspring and determine the genotype, which will most likely predominately be the wild type phenotype with a few recessive traits. To conduct the experiment, we first cross the parents, wild type with sepia eyes and vestigial wings or black body with vestigial wings. The offspring from that cross is expected to be 100% wild type and the following cross between the F1 generation is expected to be 9:3:3:1.
The null hypothesis of this experiment is that the ascospores color gene assorts independently and that the phenotype of Grey and Tan are unlinked. The alternative hypothesis is that the Grey and Tan color genes are linked. (Glase,
An enzyme is a biomolecule that acts as a catalyst in biochemical reactions (1). Enzymes are commonly used in many products and medications. Enzymes function by flexibly binding to active sites in substrates (reactants). This binding is weak non-covalent interactions.
This means since my father’s earlobes are attached, differing from my mom’s free hanging ones, one of them has a homozygous recessive genotype. Due to the fact my brother and I both have free hanging earlobes like my mother, the probability is higher that free hanging earlobes are a dominant trait. For example, if my mom’s trait was heterozygous, meaning her phenotype would still be that of a dominant one, the probability my parents have a child with free earlobes is 50% along with the chance of having a child with attached at also 50 %. If my mom carried the homozygous dominant alleles instead of the heterozygous, the probability my parent’s offspring would have free hanging earlobes would be
This is because the better trait is produced by engineering genes which results in favoring one organism. Genetically modified organism can interrupt the natural process of the gene flow. A possible issue with the modified crop genes ending up in the soil which can produce new strands that can eventually attack the plant species and producing a new strand. Genes from the GM crops can spread to organic farm crops threating the diversity in agriculture. Due to cross pollination to non-gm plants, new hybrid strains are created.