Sex Determination Sex is determined by an?entire chromosome pair?(as opposed to most other characteristics that are just determined by one or a number of genes) Females?have the sex chromosomes (pa...
Haploid Haploid nuclei have one chromosome of each pair Haploid cells contain?one complete set of chromosomes (n) In other words, they have?half?the number of chromosomes compared to normal body ce...
Eukaryotic Chromosomes Chromosomes in eukaryotic cells are?one,?very long?DNA molecule associated with proteins The main proteins present are the large, positively charged globular proteins called?...
Prokaryotic Chromosomes The DNA in prokaryotic cells is significantly different from the DNA found in eukaryotic cells Prokaryotes?do not contain a nucleus?therefore the DNA is located in the cytop...
Genome The?total of all the genetic information in an organism?is called the?genome?of the organism This is a?complete set of genes?present within every cell of an organism This includes?all genes?...
“沒有繪畫基礎(chǔ)，能否學(xué)習(xí)IB視覺藝術(shù)課程？”——無論是IB選課，或是個人興趣愛好的沉淀，這都是許多“白紙”般的學(xué)生們會普遍面臨的問題。 如果我們拋開“IB”這一標(biāo)簽，藝術(shù)作為一門抽象學(xué)科，我們往往很難去量化某個人...
Mutation A?gene mutation?is a change in the sequence of base pairs in a DNA molecule; this may result in a new allele Mutations occur?all the time?and?at random There are certain points in the cell...
Alleles Eg. blood types A, B, AB and OEach allele results in a different variation of that trait A gene codes for a specific polypeptide that can affect a specific trait or characteristic in an org...
Genes & Polypeptides A gene is a section or?length of DNA?that codes for a?polypeptide Genes are?heritable factors?that influence specific?characteristics?(via the polypeptides produced) Charac...
