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SSSSS [86.1K]
3 years ago
14

The genetic material that determines traits in a cell consists of DNA . How many different nucleotide bases are in DNA?

Biology
1 answer:
dexar [7]3 years ago
4 0

I think there is 4 different nucleotide

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Why are acquired traits unimportant in the process of evolution?
Assoli18 [71]
Because they do not evolve in the sense of inherited traits, which can deal with the evolution of a organism for survival. Acquired traits are learned traits.
7 0
4 years ago
Red–green color blindness is an X-linked recessive trait in humans. Polydactyly (extra fingers and toes) is an autosomal dominan
Tamiku [17]

Answer:

The girls with polydactyly  color-blind and is 1/8, the boys with normal fingers and color vision is 1/8.

Explanation:

X - linked recessive trait may be defined as the trait that are normally passes down from mother to son. Males have high chances since they have only one X chromosme. The female should have both X chromosome affected to express the trait. Autosomal dominant trait express the trait in both the homozygous dominant and heterozygous condition.

The red - green color blinded male with polydactylous is married with female that have normal color vision and normal toes and finger. With the help of pedigree chart and probability,the outcome of their children with specific phenotype can be calculated.

Martha is normal for poldactyly and contains recessive trait for polydactyly. She is a carrier for the color blindness as his father is affected by the disease. Bill is affected by the color blindness and heterozygous for the polydactyly trait. The marriage between marry and bill have the children with  1/8 proportion of the girls can be color bind and shows polydactyly {1/4 ( girls with color blindness) × 1/2 ( the probability of polydactyly}. 1/8 proportion of the boys with normal vision and normal toes and finger {1/4 (boys are normal) × 1/2 ( the probability of normal toes and finger}.

5 0
3 years ago
Biologists Schleiden and Schwann would state that _____.
kirill [66]
(a) all cells come from other cells 
<span>(b) the smallest living unit is the cell </span>
<span>(c) all living things are made up of a cell or cells </span>
<span>(d) all of the above

it's D
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5 0
4 years ago
Read 2 more answers
is a protein found in blood that is represented by a + or – sign, which affects the compatibility of blood with other blood type
Tema [17]

Answer:

Yes, the protein is found on the surface of the red blood cell which is represented by a positive or negative sign.

It is termed as Rh factor.

Rh factor refers to the class of antigen or protein found on the red blood cell.

If the protein is present, then the person is said to be Rh positive and when the protein is absent the person is said to be Rh negative.

4 0
3 years ago
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An apple turns brown after reacting with oxygen in the air. *
wlad13 [49]

Answer: A change in color

Fruit turns brown when exposed to air because a reaction is happening when a cut piece of fruit is exposed to oxygen.The chemical reaction can be simplified to: Polyphenol Oxidase + O2 → Melanin (Brown Color) Oxygen activates the compound polyphenol oxidase in the fruit to turn the fruit brown.

Brainliest pwease if my answer was correct!

<h2>૮ ˶ᵔ ᵕ ᵔ˶ ა▄︻┻┳═一~♡︎   </h2>
3 0
3 years ago
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