Biology - April 2007

2007-04-26 05:23:23 · 6 answers · asked by Anonymous

a. the suspect was never at the crime scene
b. the suspect may have been at the crime scene,because DNA fingerprinting has a large error rate.
c. the blood sample to come from another person,but the suspect may still have been there.
d. the blood sample was probably degraded over time.
e. you cannont get DNA fingerprint from a blood sample.

2007-04-26 05:21:27 · 16 answers · asked by sheng b 1

36. _________________is a term used to describe two genes (sometimes called alleles) that are alike. For example in some tall pea plants it would be “TT” or short pea plants “tt”. Notice the letters are the same!

37. _________________ is a term used to describe two genes that are different. For example “Tt” in tall pea plants. Notice the letters are different. Because there is one dominant gene (“T”) the plant will be tall because the dominant gene “overshadows” the “t” or the recessive gene.

2007-04-26 05:19:53 · 2 answers · asked by Anonymous

a. restriction frament length polymorphisms
b. arrays of DNA probes on filter paper
c. single tanderm repeats
d. A and B above can both be used
e. A,B,and C above can be used

2007-04-26 05:17:03 · 2 answers · asked by sheng b 1

The Y-chromosome is shorter than the X-chromosome, accounting for about four percent less mass to the sperm cell. However, when millions are deposited and must travel a relatively long distance with equal propulsion, this difference in mass should result in what difference in male and female zygotes produced? Can your finding be compared and agree or not with the real outcome?

2007-04-26 05:07:53 · 1 answers · asked by tessy5343 1

Question is:
One method of contraception involves the surgical cutting of one of the structures on the diagram. On the diagram, draw an X to show which structure will be cut.

..and then there's a diagram of a SPERM making it's way through an EGG..the diagram also features the NUCLEUS of the egg.
ii.) Which is cut?
iii.) Suggest why this surgery is an effective method of contraception?
iv.) Give ONE disadvantage of this method of contraception.

Thanks alot.. I've been searching everywhere for the answer..
p.s. Honest I'm not being lazy!

2007-04-26 04:58:01 · 3 answers · asked by Anonymous

are we the same person... or essentially dead as we are replaced by the new cells? and if you refer to the soul, does that mean even if you were replaced completly by robotic parts, a thing that acts and thinks exactly like you and claims to BE you, means that it is you still?

2007-04-26 01:49:30 · 3 answers · asked by KILE T 1

a. correlation
b. case study
c. interview
d. experiment

Following her stroke, Dorothy could understand what she and what was being said to her, but she had extreme difficulty in speaking. Based on these observations is likely that she has damager her:
a. corpus callosum
b. Wernicke's area
c. Broca's area
d. hippocampus

If the person get a big hit to his head and suddenly went unconscious, the person...
a. neurons in the frontal lobe were stimulated by the hit
b. neurons in the occipital lobe were stimulated by the hit
c. neurons in the retina were stimulated

The independent variables is to ___ as the dependent variable is to ___.
a. inner consciousness; outward actions
b. cause; effect
c. mental activity; outward actions
d. sample; control

What is the function of the synaptic gap?!

2007-04-26 00:44:02 · 1 answers · asked by Anonymous

a. correlation
b. case study
c. interview
d. experiment

Following her stroke, Dorothy could understand what she and what was being said to her, but she had extreme difficulty in speaking. Based on these observations is likely that she has damager her:
a. corpus callosum
b. Wernicke's area
c. Broca's area
d. hippocampus

If the person get a big hit to his head and suddenly went unconscious, the person...
a. neurons in the frontal lobe were stimulated by the hit
b. neurons in the occipital lobe were stimulated by the hit
c. neurons in the retina were stimulated

The independent variables is to ___ as the dependent variable is to ___.
a. inner consciousness; outward actions
b. cause; effect
c. mental activity; outward actions
d. sample; control

What is the function of the synaptic gap?!

2007-04-26 00:29:24 · 2 answers · asked by Anonymous

The four types of tissue include epithelial, connective, muscle and nervous.

2007-04-25 21:13:16 · 4 answers · asked by Bijou 2

1) Turnover bring nutrient rich waters into the photic zone. Which of the following would initially and directly benefit from this process:
a) rotifers
b) custacean zooplankton
c) filter feeding molluscs
d) carnivorous fish
e) diatoms

2) The water attaining its greatest density drives movement of nutrient rich water in which of the following experiments:
a) temperature lake that forms a ternocline in the summer
b) tropical lake that forms a termocline
c) open ocean far from the coast of the continents
d) equatorial water
e) coastal regions where the marine currents flow off shore

3. Which of the following is NOT in short supply in the marine waters of the photic zone during the summer in at latitudes of 60 N:
a) nitrate
b) phosphate
c) silicate
d) dissolved carbon dioxide
e) the major inorganic component of a diatom cell covering

Please provide some explanations too if you don't mind. Thanks a lot!! :)

2007-04-25 17:37:07 · 1 answers · asked by 123haha 1

2007-04-25 17:34:26 · 2 answers · asked by Anonymous

This points out that:
a. recombinant DNA technology is inherently a bad idea and should be abandoned
b. humans are not wise enough to use this technique properly
c. society shouyld let scientists decide the proper uses of recombinant DNA technology.
d. society as a whole should decide the proper uses of recombinant DNA technology.
e. Citizens should not be allowed to decide such issue sence they tend to make decisions based on emotion.

2007-04-25 17:30:10 · 5 answers · asked by dana s 1

than on the inside?

2007-04-25 16:19:45 · 4 answers · asked by rgeleven 3

2007-04-25 16:00:53 · 3 answers · asked by godin_detour_red 2

2007-04-25 15:58:15 · 1 answers · asked by Anonymous

2007-04-25 15:57:16 · 6 answers · asked by smileyguidetolife 1

a. is always female.
b. Is heterozygous for recessive condition.
c. shows the dominant phenotype.
d. can pass the gene on to his/her daughters.
e. All of the above choices are correct.

2007-04-25 15:48:04 · 2 answers · asked by lacy t 1

a. because of the segregation of the X and Y chromosomes during male meiosis.
b. Is heterozygous for recessive condition.
c. Shows the dominant phenotype.
d. A and B
e. A and C

2007-04-25 15:45:35 · 2 answers · asked by lacy t 1

2007-04-25 15:43:45 · 1 answers · asked by Anonymous

a. Males inherit these genes from their fathers.
b. Males always carry two copies of these genes.
c. All male offspring of a female carrie get the gene.
d. The male has only one gene for the trait.
e. Males get more doses of the recessive gene than do females.

2007-04-25 15:42:08 · 2 answers · asked by lacy t 1

would you consider ash to be a biotic or abiotic factor?

2007-04-25 15:39:26 · 1 answers · asked by mike 1

a. Autosomes carried by the egg cell.
b. Males always carry two copies of these genes.
c. All male offspring of a female carrier get the gene.
d. The male has only one gene for the trait.
e. Males get more doses of the recessive gene than do females.

2007-04-25 15:38:39 · 4 answers · asked by lacy t 1

2007-04-25 15:33:12 · 2 answers · asked by Anonymous

I already tried looking for the answer on line but I couldn't find it. so I was hoping some of you coud answer it.
thanks for the help

2007-04-25 15:21:08 · 5 answers · asked by Female 4

a. They tend to be inherited together.
b. They are linked.
c. They will be expressed diffrently in males than in females.
d. None of the above are true.
e. Both A and B above are true.

2007-04-25 15:15:14 · 3 answers · asked by Anonymous

what do they teach in evolution on how man was made? and what experiment did some scientist do? what did he use to make man? i guess thats what im trying to say. like what substances did he use?

2007-04-25 14:54:59 · 4 answers · asked by mokasmoothie 1

In a cell in which 2n=6, the independent assortment of chromosomes during meiosis can by itself give rise to _____ genetically different gametes?
a) 4
b)2
c)8
d)10
e)6

2007-04-25 14:52:19 · 3 answers · asked by incubabe 6

Which of the following are true statements about cycles of some of the Earth's major components? (There may be more than one correct answer.)

A. Oxygen and water vapor are the two most abundant gases in the atmosphere.
B. Salt water and fresh water move through separate water cycles.
C. Oxygen generally cycles through three different states - solid liquid and gas.
D. Atmospheric nitrogen is abundant, but not very useful to life. Before it can be used it must be "fixed" and converted to a secondary form.
E. The cycling of carbon, nitrogen, and oxygen involves members of the plant kingdom.

2007-04-25 14:50:25 · 3 answers · asked by Rattiesrule 2

2007-04-25 14:43:15 · 3 answers · asked by Alyssa R 1