Cell Biology Questions
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If 2 heterozygous organisms are crossed what percent of their offspring will also be heterozygous?
How many haploid and diploid cells are produced from meiosis?
Assuming a 3:1 ratio in the F2 generation, if you counted 1500 dominant purple flowers, about how many recessive white flowers would you expect?
If two heterozygous (Hh x Hh) organisms are crossed, what will be the genotypes and percentages of their offspring?
Polygenic traits such as skin color will produce a bell shaped curve graph, showing most individuals falling in the middle range. Which other polygenic traits from your notes would you expect to produce a similar bell-shaped curve?
What is another name for a heterozygous organism?
Draw a Punnett square for a cross between Tt x tt, and list the genotypes and phenotypes of the possible offspring.
In a dihybrid cross of homozygous dominant & homozygous recessive parent (RrYy x RrYy), what fraction of the offspring will be recessive for both trait?
What is the chance an individual will get Huntington's disease if one of their parents has it?
What are alleles? Assuming Mendelian Genetics, how many alleles do you get from each parent from a particular trait.
In a habitat that changes frequently, how is sexual reproduction an advantage over asexual reproduction?
What process reduces the umber of chromosomes in half?
If 2 genes are close together on a chromosome, are they more of less likely to separate during crossing over?
If a homozygous dominant parent is crossed with a homozygous recessive parent all the offspring in the generation will be __________?
What process returns the haploid gamete cells to diploid?
Do men and women have different numbers of chromosomes in the gamete cells?
Chloroplasts absorbs energy from sunlight and water molecules are broken down
1. Carbon dioxide molecules into the Calvin cycle.2. Energy added to molecules in the cycle; molecules rearranged into higher energy molecule.3. High energy, three carbon molecule leave the cycle; two are bonded together to make a six carbon sugar.4. Energy added to molecules remaining in the cycle to change them into five carbon molecules.
1. Energy absorbed from sunlight, and transferred to electrons that an electron transport chain (ETC)2. Water molecules are broken down; electrons enter chlorophyll.3. Energy from electrons in transport chain is used to pump H+ ions across the thylakoid membrane.4. Energy, absorbed from sunlight is transferred to electrons.5. High energy electrons used to produce an energy carrying molecule called NADPH.6. H+ ions flow (by diffusion) through a channel in the thylakoid membrane7. The channel is part of ATP synthesis, which produces ATP
Produce their own energy: produce chemical energy for themselves and other organism