Human Genome
what is the human genome project ?
an international research imitative launched in 1990
What is DNA ?
DNA stands for deoxyribonucleic acid
what is Incomplete Dominance, Codominance, Multiple allele ?
ncomplete dominance is a condition in which a dominant allele does not completely mask the effects of a recessive allele.
what is dihybrid cross ?
A dihybrid cross describes a mating experiment between two organisms that are identically hybrid for two traits.
what is meiosis ?
Meiosis is a type of cell division in sexually reproducing organisms that reduces the number of chromosomes in gametes .
What are the goals of human genome ?
identify all approximately 20,000-25,000 genes in human DNA
What are mutations ?
A mutation is a change in a DNA sequence.
what type of rls between alleles ?
This type of relationship between alleles, with a heterozygote phenotype intermediate between the two homozygote phenotypes, is called incomplete dominance.
what is the genotype trick ?
Genotyping involves the identification of defined genetic variants that give rise to the specific drug response phenotypes.
what is the difference between meiosis and mitosis ?
Mitosis produces two genetically identical “daughter” cells from a single “parent” cell, whereas meiosis produces cells that are genetically unique from the parent and contain only half as much DNA.
How does CRISPR work ?
utilizes a guide RNA to locate sequences .
what are the effects of mutations ?
some mutations can lead to genetic disorders .
what are multiple alleles ?
Multiple alleles are the many different versions of a trait that exist within a population.
how do you understand alleles ?
"Allele" is the word that we use to describe the alternative form or versions of a gene.
what is stage I of meiosis ?
the number of cells is doubled but the number of chromosomes is not.
What is CRISPR ?
A groundbreaking gene - editing technology discovered in bacteria .
give an example of genetic disorders
Cystic fibrosis
Sickle cell disease.
Huntington's disease.
what is codominance ?
Codominance, as it relates to genetics, refers to a type of inheritance in which two versions (alleles) of the same gene are expressed separately to yield different traits in an individual.
how do you set up a punnets square ?
To make a Punnett square, start by drawing a box that's divided into 4 equal squares. Then, label the rows with one parent's genotype and the column's with the other parent's genotype. Then, label each square, starting with the letter to the left of the square followed by the letter above the square.
what are the 5 stages of mitosis ?
prophase, metaphase, anaphase and telophase, and cytokinesis.
when was cas9 enzyme discovered ?
cas9 was discovered in streptococcus
what are the roles of mutations in evolution ?
they are the raw material of genetic variation. Without mutation, evolution could not occur.
What is an example of incomplete dominance and codominance?
codominance means you see both of the traits such as having a cow with black spots means it has white and black genes, incomplete dominance would be a mix of the traits like having a white and red flower make a pink flower.
how do you fill in punnet square ?
ecause meiosis creates cells that are destined to become gametes or reproductive cells