Biology Answers

When a dark blue fish and a light blue fish with dark blue fins were mated , all offspring became dark blue. What could also be seen was that part of the offspring got light gray fins.

If a sample of DNA is 75 base pairs long, how many amino acids will be present in the polypeptide chain that is fomed?

What is the difference between "muscle contraction produced by CNS" and muscle contraction produced through electrical stimulation"?

How is the egg yolk distributed in the frog's egg?

Describe the structure and function of alveoli.

Natural selection generally results in

methylation (addition of —CH3) of cytosine nucleotides (select all of the above)

a. induces transcription

b. inactivates a gene

c. leads to polyploidy

d. results in genomic imprinting

What happens in the body when only proteins and fat are ingested but carbohydrates are excluded? Are diets that are high in proteins and fat healthy weight-loss alternatives?

Following tetrads are observed in yeast crosses involving three pairs of  heterozygous genetic markers (A/a; B/b) (C/c; D/d) (E/e; F/f): 

Cross I (A/a; B/b) Cross II (C/c; D/d) Cross III (E/e; F/f) AB Ab CD CD EF Ef EF AB Ab CD Cd EF Ef Ef ab aB cd cD ef eF eF ab aB cd cd ef eF ef 

---- ----- ------ ----- ---- ----- ----  95 90 50 20 80 5 20  

What is the genetic map distance (in cM or M) between the two pairs of loci in each of the  three crosses?

The key difference between hearing aid and

cochlear implant is that [Best answer ]

A.

the hearing aid codes the sound into electrical

pulses.

B.

the hearing aid directly stimulates the auditory

nerves in the cochlea.

C.

the cochlear implant codes the sound into

electrical pulses.

D. the cochlea uses a speaker to stimulate the ear.