Science Final Part 6: Heredity and Meiosis
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34 terms
Terms | Definitions |
|---|---|
 What happens when a true-breeding plant self-pollinates | All of its offspring have the same traits as the parent |
| A plant with two dominant OR two recessive alleles is said to be | homozygous |
| Which one of the following statements is NOT true | genes are the only influence on traits |
| How are sex cells different from other human cells? | sex cells are haploid |
| Why do sex-linked disorders occur more often in males? | Males only have one X chromosone |
| Instructions for an inherited trait are called.... | genes |
| This diagram is used to trace a trait throughout generation of a family..... | a pedigree |
| What is a feature that has different forms in a population? | characterisitc |
| When there is a codominance.... | each allele has its own degree of influence |
| The Law of Independent Assortment describes the random arrangement of homologous chromosone pairs during.... | Metaphase 1 |
| Two forms of a gene, one from each parent, are called..... | alleles |
| What is it calledwhen cells are divided with half the number of chromomes? | Meiosis |
| Which is the name for the way cells divide in asexual reproduction? | Mitosis |
| When a plant fertilizes itself, it is called a(n) | self pollinating plant |
| Traits passing from parents to offspring is called.... | heredity |
| Chromatin condesnses into choromosomes, and nuclear membrane disappears... | Prophase I |
| The nuclear membrane re-forms, and the cell divides, the paired chromosomes remain joined... | Telophase I |
| The chormatids pull apart and move to opposite ends of the cell.... | Anaphase II |
| Dominant alleles are reflected in.... | the phenotype |
| When neither dominant or reesive alleles are reflected upon the phenotype (a red and white flower which produce a pink flower) | Incomplete dominance |
| When both alleles are shown somehow in the phenotype | Co-dominance |
| When there are more than just 2 alleles that affect the offsprings trait (such as bloodtype) | Multiple alleles |
| How many chromosomes do gametes have? | they only have half the chromosomes (they are haploid, they need to be fertilized to become a diploid cell) |
| Mitosis.... | has 4 stages; is gentically uniform; has diploid cells; asexual reproduction; makes 2 cells |
| Meosis... | has 8 stages; is genetically diverse; has haploid cells; sexual reproduction; makes 4 cells |
| The genetic "make up" of something can be called... | genotype |
| What is the chemical formula for photosynthesis? | photons + 6CO2 + 6H2O-->C6H12O6 + 6O2 |
| What is the chemical formula for cellular respiration? | 6O2 + C6H12O6--> 6H2O + 6CO2 + 36ATP |
| Why genetic recombination beneficial in meiosis and dangerous in mitosis? | Meiosis promotes genetic diversity and in mitosis it would cause cancer |
| how do they sex cells get a full set of chromosomes? | fertilization |
| The different forms of genes (dominant and recessive) are known as..... | alleles |
| Sex cells are made during ... | meiosis |
| chromosomes are copied, and then the nucleus divides twice | meiosis |
| cells having two sets of chromosomes | diploid |
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