Biology: B1 2.5 / 5 based on 3 ratings ? BiologyEcology and Environmental ScienceGCSEOCR Created by: hhelmanCreated on: 26-03-16 16:33 What is a gene A short length chromosome. 1 of 32 What is a nucleus A cell which holds the chromosomes 2 of 32 How many chromosomes are there in a human cell. 23 pairs 3 of 32 What do genes do Instruct proteins 4 of 32 What is the genotype of an organism Its' constitunecy of cells 5 of 32 How many chromosones does a sperm or egg carry 23 chromosmes each 6 of 32 What is an allele Different versions of the same gene 7 of 32 What sex chromosomes does a male have XY 8 of 32 How many dominant alles does a cell need to carry that instruction. 1 9 of 32 How many alleles does a recessive gene need to carry that instruction 2 10 of 32 Which chromosome determines your sex 23rd 11 of 32 What is cystic fibrosis A genetic disorder where you develope mucus across the respiritory system 12 of 32 Is Cystic fibrosis Recessive 13 of 32 What is huntingtons diecease A genetic disorder which causes tremors, memory loss, mood changes and poor concentration 14 of 32 Which allele is needed to inherit Huntingtons diecease Dominant 15 of 32 What does Ivf stand for in vitro fertililation 16 of 32 What is Ivf A way of finding out if a baby or feotus has a genetic disorder 17 of 32 What are the problems ascociated with Ivf They arent 100 percent acurate 18 of 32 What are the problems ascociated with Ivf Its not 100 percent safe 19 of 32 What are the problems ascociated with Ivf The child can often get discrinated 20 of 32 What are the problems ascociated with Ivf Insurancy companys may not insure the child 21 of 32 What is a clone An organis with the smae genes and alleles 22 of 32 What is a sexual reproduction a way of giving birth which only replicates the dna of the subject. 23 of 32 How are twins formed When a single un/fertilised egg splits. 24 of 32 How do scientist crate cloned animals When they remove the nuclus of an egg cell amd is replaced with a donor with the exact amount of chromosomes 25 of 32 What are stem cells Unspecialised cells 26 of 32 How do we retrieve human stem cells By removing them from foetuses 27 of 32 What are the uses of stem cells To help patients repair from sickle cell anaemnia bone marrow transplants 28 of 32 What is homozygus Two alles that are the same for one gene 29 of 32 What is heterozygus Two different alleles for one gene 30 of 32 What is a haploid A sex cell with half of its chromosomes 31 of 32 What is a diploid A cell with its complete set of alleles 32 of 32
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