DNA molecules can be viewed through Scanning Tunneling Microscopy (STM). Within this type of microscope option, DNA molecules can be ultimately seen at atomic levels and at greater depth to identify the differences between various DNA molecules.
protons, neutrons, and electrons
Answer:
Parents: yellow, entire petals (CC FF) × white, fringed petals (cc ff) F1 (Cc Ff)
For the cross of a heterozygous F1 individual (Cc Ff) with a homozygous recessive
individual (cc ff) we would expect a phenotypic ratio of 1:1:1:1 for the different phenotypic classes.
Phenotype Observed (O) Expected (E) (O - E)2/ E or ( 2)
Yellow, entire 54 43.75 2.40
Yellow, fringed 58 43.75 4.64
White, entire 53 43.75 1.96
White, fringed 10 43.75 26.0
Total 175 175 35
Degrees of freedom = 4 - 1 = 3. The chi-square value is greater than 12.838 for a probability value less than .005, or 0.5% that random chance produced the observed ratio of California poppies.
B .t is unlikely that random variations produced the observed ratio.
Explanation:
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The correct option is C.
The hypothalamus is an area of the brain which contain a number of nuclei which have varieties of functions. The hypothalamus link up the nervous system and the endocrine system through the pituitary gland in the brain. The hypothalamus is responsible for the secretion of orexin hormone, which regulates appetite, wakefulness and arousal. Hypothalamus is also responsible for monitoring the secretion of other appetite hormones.<span />
