The major types of physical evidence for climate change are
the sea floor sediment, glaciers, ice cores, and sea level change.
The glaciers and ice cores are rapidly melting which leads
to the rising sea level that is considered as abnormal rising. Sea floor sediments are also changing.
Answer:
The function of organelles is to provide a specific function for the cell.
Explanation:
Eukaryotes have organelles not prokaryotes. All the cellular processes of prokaryotes occur in one cell. The advantage of having seperate spaces to do various functions is for regulation and maintance.
The first step that is involved in the hybridization of radioactive DNA and normal DNA is to heat a mixture of the two types of DNA.
Answer: Option D
<u>Explanation:</u>
Hybridization of radioactive DNA and normal DNA is a molecular biology technique that is used to analyse the similarities between the radioactive DNA and normal DNA for scientific purpose.
The first step involved in this hybridization process is heating of the two DNA at higher temperature and this heating process is known as DNA melting. This is usually preferred as a method to determine the genetic distance between two organisms.
Answer:
1 .tall (or heterozygous)
2. 3:1
3. carriers
4. Each parent organism contributes one copy of its alleles in a seemingly random fashion to its offspring, as meiosis to create gametes (egg or sperm cells) reduces the number of genes by half.
5. Therefore, each gamete contributes only one allele. A Punnett square is a diagram used to map out the possible genotypes of a child given the genotypes of its parents. In a Punnett square, the genotype of one parent is listed in the first row of the square, and the genotype of the second parent is listed in the first column. Then, in the middle squares, all possible genotypes of their offspring are listed, and the phenotypes are calculated using the law of dominance.
6. Purebred strains of organisms always produce heterozygous offspring in the first generation, with all members of the first generation exhibiting the dominant trait for the gene of interest. The second generation typically has a 3:1 mix of dominant and recessive phenotypes, respectively.
7. Punnett squares predict that the second generation of two distinct purebred homozygotes for a trait will have a 3:1 ratio of dominant to recessive traits. Mendel did careful statistical analysis on his hybridization experiments and found that, for each of his seven characteristics of interest, the ratio was approximately, but not exactly, 3:1. Therefore, Mendel's experimental observations match the predictions of Punnett squares quite well.
Explanation:
its from penn foster
The water cycle is a parameter of the hydrosphere that always remains constant. Life on Earth and its sustenance is possible because of this cycle. The continuous evaporation, condensation, and precipitation of water provides for the many processes involved in Earth's natural surroundings. Without the water cycle, life would cease to exist.