Lecture 10: Inheritance 1. Describe the human life cycle. 2. Why are humans so d

Question

Lecture 10: Inheritance 1. Describe the human life cycle. 2. Why are humans so diverse in their appearance? 3. Explain how monozygotic and dizygotic twins occur. 4. Who was Gregor Mendel? 5. A who is heterozygous for eye color (B-brown, b blue) and a woman who is homozygous recessive for eye color are having a child. What are the possible genotypic and phenotypic outcomes for this child's eye color? List the percent chance of each occurrence Lecture 11: Complex Inheritance Explain incomplete dominance, codominance, multiple alleles, and pleiotropy 2. 1. How many total chromosomes are in our cells (excluding gametes)? How many from each parent? 3. Only females can be carriers of recessive X-linked traits. Why? 4. Males are much more susceptible to diseases caused by X-linked recessive alleles than females. Why? 5. How was DNA profiling used in the case of the Romanovs? Lecture 12: Transcription/Translation 1. What is the function of a gene? 2. Describe the process of transcription. (You can draw and label a picture to aid your description) Describe the process of translation. (You can draw and label a picture to aid your description) 3. 4. What are the properties of the genetic code? 5. What are the possible outcomes of genetic mutations?

Explanation / Answer

Human life was evolve from prokaryotic cell. With the constant change in their genome, human life may survive in any harsh environment on earth. From the desert of sahara to dense rain forest, humans adapt the environment by changing their genetic composition. Food provides energy to human body for doing their metabolic activities. The life cycle of human consist of childhood, adolescent, adulthood, maturing and elder age. Continuous genetic changes makes the human life more adaptable on earth.

2..Different individual on earth have different genetic composition. These genes are responsible for all the phenotypic appearance of human. Change in genetic composition of each human, makes him unique from other. Non a single individual on the earth have 100% same genetic composition.

3..Monozygotic twins are developed from the single zygotes which later spit into 2 zygotes and develops two different individuals. Generally one of the monozygotic twin is weak, because here genetic composition is spitting (not equally distributed). Dizygotic twins are arise due to fertilization of two different eggs. Hence two individuals which are developed from di zygotic twins are generally healthy.

4..Gregor mendel is botanist who developed a basic hereditary principle through experiment on garden pea. He discovered the way how the characters were transmitted from parents to offspring and described the mechanism of dominance, independent assortment and law of segregation.

(as pe the chegg guide line I answered first 4 questions, because there are so many question in one)

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