There are many factors that may influence enzyme activity, such as: temperature, pH, enzyme concentration, substrate concentration, and the presence of inhibitors or activators. It can be temperature because it can be too high above optimal temperature will cause denaturation or too low below optimal temperature will cause a decrease in reaction rates and will eventually halt. It can be pH because enzyme's will denature if raised above or below optimal pH. It can be substrate concentration because of high levels of substrates will increase reaction rates to a point, however when becomes saturated, the reaction rate will become unaffected. Also, it can be inhibitors because of an agent that slows or interferes with a chemical action.
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Answer:
1/128
Explanation:
In a diploid individual, 2ⁿ possible gametes can be produced, where <em>n</em> is the haploid chromosome number.
From those possible gametes,
- is the number of gametes that will contain maternal chromosomes only
- is the number of gametes that will contain paternal chromosomes only
- is the number of gametes that will contain a combination of both maternal and paternal chromosomes.
The probability that an individual spore will contain a set of chromosomes all of which came from the male gamete will be:
<h2>
</h2>
Proximity, similarity, closure and simplicity
Pollen grain, embryos, seed coatings, and megasporangium.
Answer:
Genes aren't eradicated from natural selection, but the chances of getting the phenotypes (the physical attributes of an organism based on the genes) go down as the organisms with those phenotypes die out.
Explanation:
Recessive genes are still present in, for example, a heterozygous genotype. but since there is a dominant, it covers the recessive gene and the phenotype won't have anything to do with the recessive gene (unless we are talking about incomplete or codominance).