1) How to use pedigrees:
They are diagrams in which people are represented by symbols. Circles
represent female and squares represent males.
The bottom line represents the offspring of the couple above it.
Dark symbols are used to indicate someone who is affected with a
genetic condition.
Not colored symbols indicate someone who is NOT affected.
A heterozygote carrier.can be represented as grey color.
2) How traits are inherited:
Humans have 23 pairs of chromosomes (46 chromosomes) because 23 chromosomes are inherited from the father and the other 23 come from the mother.
With 23 sets, you have two copies of each gene. This copies can be different or the same and based on that there could be different traits for the same gene like black, brown or blond hair.
Answer:
e. regenerates a three-carbon molecule and alcoholic fermentation does not.
Explanation:
Lactic acid fermentation includes the reduction of pyruvate into lactate. Lactate is a three-carbon molecule. Reduction of pyruvate into lactate also regenerate NAD+ required to continue the process of glycolysis.
Alcoholic fermentation includes decarboxylation of pyruvate into acetaldehyde followed by its reduction of alcohol. The alcohol formed as end product is a two-carbon molecule (ethanol). Here, NADH serves as electron donor and is oxidized into NAD+. Therefore, both the process regenerate NAD+ but ethanol fermentation does not regenerate the three-carbon molecule since one carbon is lost as CO2.
The sun’s energy causes water to evaporate from oceans and lakes into the atmosphere. {{{Plants and animals also release water vapour into the atmosphere as they breathe( or sometimes by evaporation of sweat from the skin).}}} When the atmosphere cools, water vapor condenses; making clouds that might produce rain or snow. Water has been recycled in its different forms as ice, liquid, or vapor for more than 3.5 billion years.
<span>As for the carbon cycle, plants absorb carbon dioxide from the atmosphere and use it, combined with water they get from the soil, to make the substances they need for growth. The process of photosynthesis incorporates the carbon atoms from carbon dioxide into sugars. {{{Animals,such as rabbits, eat the plants and use the carbon to build their own tissues. Other animals, such as foxes, eat the rabbits and then use the carbon for their own needs. These animals return carbon dioxide into the air when they breathe, and when they die, since the carbon is returned to the soil during decomposition. The carbon atoms in soil may then be used in a new plant or small microorganisms.}}} Ultimately, the same carbon atom can move through many organisms and even end in the same place where it began. Herein lies the fascination of the carbon cycle; the same atoms can be recycled for millennia! </span>
<span>Hope this helps :)</span>
Answer:
DNA is double-stranded, so there must be equal numbers of C and G because they pair to each other on the complementary strands.
RNA is only single-stranded, so there can be any number of C and G. They don't pair to each other, because there's only one strand.
Answer:
Option 3, Heuristics
Explanation:
Heuristics thinking implies usage of past experiences or judgments or the memory of most relevant and similar incidents to quickly formulate judgments and solutions and make decisions. Such judgments are biased most of the time as they are based on the perseverance of an individual instead of logic and conceptualization of any scenario or incident
Hence, option 3 is correct