Answer:
The correct option is B) Both would be represented as completely shaded squares.
Explanation:
A pedigree can be described as a chart or a diagram which reflects the occurrence of a particular phenotype from one generation to another in a family. It determines the family history for a trait.
In a pedigree, males are usually drawn as squares. A male who is carrying a disorder or a particular phenotype under study is represented by shading the square. A male who is a carrier for the trait under study is represented by lines on the square. Hence, option B is correct.
Answer:
The answer is false. First part correct, second incorrect.
Explanation:
The affirmation “The polarity of an oxygen-hydrogen bond is higher than the polarity of a nitrogen-hydrogen bond” is correct: Oxygen is more electronegative than Nitrogen (3.5 O, and 3 N), then when they form a covalent bond with Hydrogen, OH-bond polarity is higher than NH-bond polarity. Nevertheless, the consequence is that alcohols (that have OH characteristic group) are more soluble in water (polar solvent) than amines (NH group). Then, second part of the affirmation is incorrect.
Answer:
False
Explanation:
Did the test and got it right
Answer:i think it it white
3. Nitrogenous bases are held together by what type of bond?
Answers:
1. 2 strands. (known as polynucleotide)
2. DNA is double stranded while RNA is single stranded.
3. Hydrogen bonds.
There are four types of them;
• Adenine and Thymine are double H-Bonds.
• Guanine and Cytosine are triple H-Bonds.
Additional:
Other DifferencesbetweenDNA andRNA:
•DNA contains the sugar deoxyribose, while RNA contains the sugar ribose.
• DNA is stable under alkaline conditions while RNA is unstable.
•DNA is responsible for storing and transferring genetic information while RNA directly codes for amino acids and acts as a messenger between DNA and ribosomes to make proteins.
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35 parts per thousand
Sea water. Seawater is water from a sea or ocean. On average, seawater in the world's oceans has a salinity of approximately 3.5%, or 35 parts per thousand. This means that for every 1 litre (1000 mL) of seawater there are 35 grams of salts (mostly, but not entirely, sodium chloride) dissolved in it.
A. He began with hybrid plants.
B. He controlled pollination.
C. He observed only one generation.
D. He used plants that reproduce slowly.
Answer:
B
Explanation:
He controlled the pollination of the homozygous recessive and homozygous dominate plants which led to the discovery of recessive genes by them appearin in the third generation
B. Photosynthesis
C. Decaying organisms
D. The gases in the atmosphere
Answer: A. Positive ions
An ocean is a reservoir of carbon. All of the following bring carbon into the ocean except positive ion:
Photosynthesis: Photosynthesis is conducted by aquatic plants in the ocean to prepare their food which is a carbon product.
Decaying organisms: The aquatic plants and animals are buried beneath the ocean bed and they are decayed and decomposed by the activity of microbial organisms. The organic matter produced after this process is rich source of carbon.
The gases in the atmosphere: The gases in the atmosphere consist of carbon dioxide and carbon monoxide released in the atmosphere by burning of fossil fuels, greenhouse gas emission and by other process. These gases are dissolved into ocean water making it available for photosynthesis conducted by aquatic plants. Hence, carbon from the atmosphere enters in ocean through these atmospheric gases.