elow............nand2 nanamn ako sa bulls net......wala talaga ako magawa sa buhay ko............sinasayang ko lang money ko........huhuhu.........

Hi!!!! My name is Elaine Jay E. Arab. A high school student of Don Pablo Lorenzo Memorial High School. I'm 13 years old. My bidthday is on October 14, 1993. We are six in the family. My father is Javier A. Arab. My mother is Maria Elena E. Arab. The eldest is Alyssa E. Arab. The second is Faiza E. Arab. I'm the third one. and our youngest is Trisha E. Arab.

By the way this girl in the left is my bestfriend.. Sometimes we argue at things that are not really important but for us it's a big deal. For me she is really a real friend because even though your mad at her she will understand and she will always be there in the time you have a problem.

elow..............ma'am pelegrino........

"Jounal Writing"

The lessons that we have discussed

We have discussed about the cell divisions-mitosis and meiosis.The 2 types of cells, parts of the

cell, the stages of mitosis.

Heredity

Genetics, Hereditary characters, organized characteristics, principle of inheritance

Mendel's Principles, Dihybrid and Monohybrid crosses, Punnett Square, genome, Non-Mendeli-

an Principles and reproductive system.

The topics that I cannot understand

One of our topics that I cannot understand are the stages of mitosis.

The most interesting topic

The Punnett Square because we have to look for the gametes of the male and female,

it's genotype, phenotype, genotypic ratio, phenotypic ratio.

this are the only questions I know..........

bleh.............

elow..........

Tracing the Inheritance of Two GenesMendel's law of independent assortment states that a gene transmitted on one chromosome does not influence transmission of a gene on a different chromosome. This law is used to predict the proportions of progeny classes when more than one trait is considered.How Inherited Traits Are TransmittedLearning Objectives1. To become familiar with Mendel’s Laws of Inheritance. 2. To provide an explanation behind the inheritance of two genes. 3. To become familiar with how genetic expression can appear to alter Mendelian ratios.4. To become familiar with the inheritance of complex genetic traits.Key Concepts1. Mendel's law of segregation states that gene variants (alleles) separate during meiosis as chromosomes are packaged into gametes. Patterns of single gene transmission and expression depend upon dominance relationships and whether a gene is on an autosome or a sex chromosome.2. Mendel's law of independent assortment states that a gene transmitted on one chromosome does not influence transmission of a gene on a different chromosome. This law is used to predict the proportions of progeny classes when more than one trait is considered.3. Sometimes Mendel's laws do not seem to be operating because expected ratios of progeny classes do not occur. Allele interactions and effects of other genes and the environment can alter phenotypes, but the laws still operate.Tracing the Inheritance of One GeneMendel's law of segregation states that gene variants (alleles) separate during meiosis as chromosomes are packaged into gametes. Patterns of single gene transmission and expression depend upon dominance relationships and whether a gene is on an autosome or a sex chromosome.4. Many traits do not adhere to Mendel's laws because they are determined by more than one gene and also sometimes by the environment

A.How Inherited Traits Are TransmittedLearning Objectives1. To become familiar with Mendel’s Laws of Inheritance. 2. To provide an explanation behind the inheritance of two genes. 3. To become familiar with how genetic expression can appear to alter Mendelian ratios.4. To become familiar with the inheritance of complex genetic traits.Key Concepts1. Mendel's law of segregation states that gene variants (alleles) separate during meiosis as chromosomes are packaged into gametes. Patterns of single gene transmission and expression depend upon dominance relationships and whether a gene is on an autosome or a sex chromosome.2. Mendel's law of independent assortment states that a gene transmitted on one chromosome does not influence transmission of a gene on a different chromosome. This law is used to predict the proportions of progeny classes when more than one trait is considered.3. Sometimes Mendel's laws do not seem to be operating because expected ratios of progeny classes do not occur. Allele interactions and effects of other genes and the environment can alter phenotypes, but the laws still operate.4. Many traits do not adhere to Mendel's laws because they are determined by more than one gene and also sometimes by the environment.

4.Solve monohybrid crosses given the phenotypes and genotypes of parents.

Objectives:1) To apply Punnett squares in solving genetic problems (monohybrid crosses) 2) To understand phenotypic ratios and the probability of certain outcomes3) Appreciate this method of problem-solving and its relationship to human heredity4) Be aware of the relevance of a testcrossPoint A: Solve genetic problems involving monohybrid crosses between heterozygous and homozygous individuals by setting up Punnett squares.The plan: Students are given the following structure for setting up a solution using a Punnett square.Problem: What are the possible genotypes of the F2 offspring if the original parents were from pure lines, each expressing a different seed colour (note that F1 offspring self-pollinate)? Solution: alleles: Y = yellow (dominant) &nb sp;y = green (recessive) parental cross P1: pure yellow seeds X pure green seeds YY X yy gametes: Y y offspring F1: Yy genotype: Yy phenotype: yellow F1 cross: hybrid yellow seeds X hybrid yellow seeds Yy X Yy gametes: Y, y Y, y Punnett square F2:

Y
y
Y
YY
Yy
y
Yy
yy

Therefore, the possible genotypes of the F2 offspring are: YY, Yy, yy Define homozygous (e.g. YY or yy) and heterozygous (e.g. Yy)Evidence of understanding: Students are able to set up the correct solution using a Punnett square to solve the following problem.Problem: In humans, brown eyes are dominant over blue eyes. What are the possible genotypes of children who have a heterozygous father for eye colour and a mother who has homozygous brown- and blue-eyed parents? Solution: alleles: B = brown (dominant) b = blue (recessive) P1: homozygous brown eyes X homozygous blue eyes BB X bb gametes: B b offspring F1: Bb genotype: Bb phenotype: brown eyes F1 cross: heterozygous brown eyes X heterozygous brown eyes Bb X Bb