Science Help PLEASE!!!!!?

Question

1. In the late 1800's, Mendel predicted the existence of the units of hereditary information or facors. What do we call these units of hereditary information today?
A. genes
B. proteins
C. loci
D. chromosomes

2.Which term describes the form of a gene that produces a specific trait, such as eye color?
A. chromatid
B. gamete
C. chromosome
D. allele

3.Which term describes a type of trait that is usually expressed only when an organism has two identical alleles for the trait?
A. dominant
B. recessive
C. homozygous
D. heterozygous

Which of the following best describes the relationship between a gene and an allele?
A. A gene is a variant of an allele.
B. An allele is a variant of a gene.
C. A gene is always dominant to an allele.
D. A gene is always recessive to an allele.

Okay people i am not asking you to tell me to do my homework. okay then dont answer my question. I have been out of school for 2 weeks with mono and my parents cant help me and i just had a couple questions i didnt get you dont have to be RUDE!

Answer 1

The answers are A, D, C, B. These answers were derived from my college biology book.

1 is "A" because Mendel came up with the "Gene Theory."
2 is "D" because an allele is one or two or more slightly different molecular forms of a gene that code for different versions of the same trait.
3 is "C" because the prefix "homo" means the same where as "hetero" means opposite.
4 is "B" because a gene is the DNA code passed on from a parent to his/her offspring and an allele has the different variations that each gene carries (i.e. blue eyes, brown eyes, etc.)

Hope this helps. I assure you my answers were well researched for you. Good luck.

Answer 2

Question 1-

Mendel described the inheritance of different traits, which is affected by the transmission of a particular gene allele.

a.

Question 2-

Differences in eye colour are caused by people having different alleles for the gene. They both have the same genes, but in different variations.

d.

Question 3.

A recessive allele is only expressed if it is the only allele present for that gene. The status of having identical versions of a gene of both of a pair of chromosomes is homozygous, but the trait is recessive

Question 4

Nowt to say here

b.

Answer 3

1.A genes
2.D allele
3.C homozygous (homo=the same, zygous=constitution of a special kind)
4.B an allele is a variant of a gene (there are two types of alleles.One version, the R allele, makes actinin, a protein found only in fast muscle fibres. These fibres help to produce the explosive bursts of speed and power that sprinters need. The other allele, called X, does not produce actinin-3.

Answer 4

1. A 2 C 3 C 4B

Answer 5

The answer for question 1 is in question 2. A
D
C
B

Answer 6

You sound like me when i was 16. ^_^ Jobs for biology: any type of Medical Doctor, but this requires 4 years of undergraduate school, at least six years of post graduate school and then years of internships Clinical Research, which involves working with pharmaceutical companies to develope and test experiment drugs that haven't been approved by the FDA to sell in the market yet. There are all different kinds of stages of clinical research from the initial testing on animals, all the way through to the drug being on the market for people and reevaluating it for further benefits. There is also just any type of scientist, from digging up dinosaur bones as a paleontologist or studying weather patterns as a metiorologist. You have to narrow it down to what type of science you like the best. There are a lot of Ivy League schools that have great biology programs, like Penn U, Princeton and UMDNJ. Find out what colleges your science teachers attended and if they liked the programs. Also, go to college fairs and sign up to receive info in the mail. You'll receive piles and piles of college stuff in the mail, but take a Saturday afternoon and go through all of them. Anything that looks like it would be strong in science, look them up on the internet for more information. To get into a good college, take as many science classes in high school as you can. Most high schools will give students the standard curriculum: 1 math, 1 science, 1 social studies and 1 english/literature. However, when you get to your junior and senior year, you can usually opt out of some classes and take additional science classes instead of something like a foreign language or phyis ed. my 11th grade year I took biology and chemistry and then in 12th grade I took AP biology and physics. You may think, "but i'm not interested in chem or physics." but, in college with a biology major you'll be required to take upper level chem and some physics classes to graduate. Having a strong background in these classes will aid you in getting accepted into college. Also, find out if there are any science fairs you can participate in locally. Even if you don't win, that's still bonus points on your application. And, of course, apply early! Take your SATs junior year and apply before the end of your junior year. Early acceptance is a big plus. Also, apply to at least four schools. hmmm, fun facts, eh? Let's see.... -Look up a guy named Phineas Gage. Interesting story. -your brain is the size of a grapefruit and your heart is the size of your fist. -there are 206 bones in the adult human body, but 300 when we are children. Many of our bones fuse together as we get older -the more bumpy your brain is, the smarter you are. Its all about surface area. -the smallest bone in your body is in your inner ear -the longest cell in your body is your motor neuron that can stretch from your big toe to your lower spinal cord -the most poisonous animal in the world is a frog in south america -the stegosaurus was over 25 feet long, but had a brain smaller than a golfball -the human eye blinks over 4 millions times per year -it takes about 12 hours for food to entirely digest -the longest living cells in the body are neurons, which can last your whole life. However, neuron cells cannot regenerate or replicate, so once they die, there is no going back -there is more computer technology in a Nintendo game system (the ones from the 1980s) than in the Hubble Space Telescope. -the average human brain weighs 3 lbs, but the heaviest ever recorded was over 5lbs -plants "lean" towards a sunny window because the lack of sunlight on the dark side of the plant causes a reaction that makes the cells swell. The plant is not "leaning towards the light" on purpose.

Answer 7

1.D 2.C 3.C 4.?

Answer 8

I have one for YOU...

5. Would I learn more if I:
A. Asked someone else to do my homework.
B. Picked up a textbook and read my assignment.

Answer 9

hey man, the answers are a, d, c, and b in the order of questions
take care

Answer 10

all the time u took to put these on here .. you could have googled them by now.