11. mendel predicted that there are “units of heredity” which we now call 12. a version or variant of a gene that produces a specific trait is called an 13. a recessive phenotype can only be displayed if the genotype is heterozygous. 14. the chromosomes that underwent during meiosis are called recombinant chromosomes, because they contain a region that has recombined to form a new pair of alleles. 15. when genes do not assort independently, the genes are said to be on the same part of the chromosome so they get passed on together. 16. a is a segment of dna on a chromosome that codes for a particular trait. 17. most sex-linked genes are on chromosome, simply because they are built of much more dna. however, are more likely than to exhibit sex-linked traits.

What happened to rosalind franklin in 1956?

On a backpacking trip, kenny hikes all day at a steady pace, covering 30 kilometers and burning 4000 calories. at the school track, janelle runs the 100-meter sprint in 13.5 seconds, burning 10 calories. afterward, janelle’s leg muscles are aching and she is breathing hard, while kenny maintains normal breathing all day, even though he burns 400 times more calories than janelle. which two statements offer the best explanation for this phenomenon? a. if the aerobic pathway—cellular respiration—cannot meet the energy demand, then the anaerobic pathway—lactic acid fermentation—starts up, resulting in lactic acid buildup and "oxygen debt." b. aerobic cellular respiration produces more energy, but its use is limited because of lactic acid buildup in the muscles and the resulting "oxygen debt." c. after about 90 seconds of intense exercise, the muscles become depleted of oxygen, and anaerobic respiration can no longer function to produce atp, resulting in "oxygen debt." d. the rate of energy demand determines how the muscles will obtain energy, either from cellular respiration or from lactic acid fermentation if not enough oxygen is present.

Jellyfish sometimes squeeze in the sides of their bodies. this pushes a stream of water from the back end of their bodies. according to newton’s third law of motion, how will this behavior affect of the jellyfish ?