Entries by Daphne Hanson

Water’s molecular structure

June 28, 2022in /by

How does water’s molecular structure affect solubility of substances on Earth? Provide a real-world example.? Ion-dipole interactions occur between the water molecules and ionic compounds or polar materials. So, they tend to be soluble in water. Salts generally break down when dissolved in water. The ions of salt are surrounded by water molecules and make […]

Seven traits Mendel studied?

June 28, 2022in /by

The seven traits Mendel studied were on separate chromosomes. Why was this fortunate? What if the traits were all close together on the same chromosome? Mendel was investigating the behavior of genes. He was fortunate in choosing traits coded by genes that happened to be on different chromosomes or far apart on the same chromosome. […]

Course of human evolution

June 28, 2022in /by

Describe the course of human evolution from that of the early vertebrates to the emergence of humankind.  Discuss the impact that both natural selection and fitness have had on each step of this evolutionary journey Homo Sapiens Neanderthalensis The Homo Erectus evolved into Homo Sapiens. During evolution, two sub-species of Homo Sapiens were identified- Homo […]

Terms of Mendelian Genetics

June 28, 2022in /by

In terms of Mendelian Genetics, discuss the following:  dominant and recessive traits, phenotype and genotype, homozygous and heterozygous, and alleles. Dominant and recessive traits exist when a trait has two different forms at the gene level. The trait that first appears or is visibly expressed in the organism is called the dominant trait. The trait […]

Types of gene or protein families

June 28, 2022in /by

What types of gene or protein families may be important for multicellularity?  Can we compare the genomes of different multicellular lineages like animals and plants to identify the most important genes critical for multicellularity?  Why or why not? What are gene families and examples? A gene family is a set of several similar genes, formed by […]

Parts of a nucleotide

June 28, 2022in /by

What are the 3 parts of a nucleotide?  What is different between ATP and dATP in terms of molecular formula Same as ATP, the three structural components of dATP are the adenine base, phosphate groups, and the pentose sugar. Here also, the adenine base attaches to the 1′ position of the pentose sugar. But, the pentose […]