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Genetics.
| Question | Answer |
|---|---|
| The failure of chromosome to seperate during meosis is called : | nondisjunction |
| What sex chromosomes represent a female ? | xx |
| meosis 1 and meiosis 2 demonstate what ? | nondisjunction |
| The human genome project is an attempt to : | sequence the dna of every human gene . |
| which of the following describe an organism that has the genotype Bb ? | heterozygous |
| The passing on of traits from parents to offspring is called : | heredity . |
| A female guinea pig homozygous dominant for black fur color is mated with a male homozygous for white fur color . In a litter of 8 offspring, there would praobably be : | 8 black guinea pigs |
| A trait controlled by four alleles is said to have : | multiple alleles |
| the 23rd pair of chromosomes that differ in males and females are called : | sex chromosomes |
| If a female fruit fly heterozygous for red eyes (xRxr) crossed with a white-eyed male (xr,y) what percent of their offsspring would have white eyes ? | 50% |
| In genetics research, what is the purpose of a test cross ? | to determine the genotypes of the parents. |
| Several matings between the same male black guinea pig and female brown guinea pig produce a total of 12 brown and 14 black guinea pigs. If black is dominant and brown is recessive, what are the genotypes of the parents ? | Bb X bb |
| Most sex-linked recessive traits, including hemophilia and color blindness appear in males. How would you best explain the reason . | In males the Y chromosome lack the genes needed to mask the recessive genes on the X chromosome. |
| Huntingtons disease is a dominant trait. What are the chances that a child will develop Huntington's disease if one parent is heterozygoes and the other is normal? | 2 out of 4 |
| A karyotype of a human female shows that she only has one sex chromosome. Which genotype would represent her condition ? | XO |
| what is Polymerase chain reaction : | It is used to multiply copies of a gene. This method is useful even wheb only tiny amounts of DNA are available . |
| what is the defintion of recombinant DNA : | DNA produced by combining DNA from different sources. |
| abiotic factor | a nonliving organism . |
| active transport | the movement of molecules against a concentration gradient with the expenditure of energy. |
| aerobic | a process that takes place in the presence of oxygen. |
| aerobic | a process that takes place in the presence of oxygen. |
| allele | a gene that controls an alternative form of a genetic trait. |
| amino acid | a compound containing carbon, hydrogen , oxygen , and nitrogen that serves as a building block of proteins. |
| amino acid | a compound containing carbon, hydrogen , oxygen , and nitrogen that serves as a building block of proteins. |
| carbohydrate | an organic compound originally formed as the products of phohto synthesis; carbohydrtaes are a major source of metabolic energy. |
| carbohydrate | an organic compound originally formed as the products of phohto synthesis; carbohydrtaes are a major source of metabolic energy. |
| binary fission | a form of sexual reproduction in which a cell splits into 2 parts in that process each part gets one copy of the DNA. |
| binary fission | a form of sexual reproduction in which a cell splits into 2 parts in that process each part gets one copy of the DNA. |
| biology | the science that seeks to understand the natural world . |
| carnivore | an organism that feeds on another organism. |
| DNA | deoxyride |
Created by:
Josselyn Torres
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