Answer:
O 20 unreplicated chromosomes
Explanation:
Ferrets have a diploid genome of 40 (meaning 20 pairs of homologous chromosomes in a diploid cell). A gamete is haploid, meaning in the case of the ferret it will have 20 chromosomes.
Chromosomes present in a gamete are not present with their sister chromatid pair (they are separated in meiosis II). And they are haploid, so not with their homologous partner. This means there are 20 unreplicated chromosomes in the ferret gametes.
big bang theory- the theory that states that the universe formed by rapid expansion of matter and energy from an initial infinitely small, dense point
biological species- a group of interbreeding organisms that can produce fertile offspring
eukaryotic cell - a type of cell that has a membrane-bound nucleus and membrane-bound organelles
evolution- the process by which inherited characteristics within a population change over generations
fossil- remains or traces of organisms preserved over long periods of time
geologic time scale- an organizational chart that chronologically divides the natural history of earth into eras and
periods
homologous structures- structures that occur in different species but are similar enough to suggest that the species had a common ancestor
natural selection- the process by which species pass on the beneficial traits that help them survive
prokaryotic cell- a type of cell without a membrane-bound nucleus and without membrane-bound organelles, considered by scientists to be a more primitive type of cell than the more complex eukaryotic cells
selective breeding- the process of breeding organisms with the most desirable traits
speciation- when natural selection leads to an entirely new species
theory- an explanation or model of related natural events that can be tested by observations or experiments
vestigial structures- structures that appear to have no function for the organism but probably had a function in an ancestral organism
Answer:
All blood types are made compatible with each other.
Explanation:
The different types of blood showed that not all blood types are compatible with each other. This is the reason why when a doctor transfer blood, this has to be compatible with the person's blood. Otherwise, the immune system will recognize the blood cells as antigens and proceed to destroy it.
Red blood cells in its surface can have different types of proteins, the proteins or lack of it that a person has determines the type of blood (A, B, AB). Also, if the cell has the Rh protein it will be positive, and if it does not have it, it will be negative. In total, we have eight blood types A+, A-,B+, B-,AB+, AB-,0+,0- and the compatibility depends on the proteins that a person has.
The answer is <span>The diploid chromosome number represents two sets of chromosomes, one from each parent, so it is always an even number.
Mentioned organisms are diploid (2n) and they have 2 sets of chromosomes in their somatic cells. However, their gametes (egg cells and sperms) are haploid (n) and have only 1 set of chromosomes.
After fertilization, a haploid egg cell from a mother and a haploid sperm from a father fuse and form diploid zygote:
n + n = 2n
Nevermind if n is odd or even number, 2n will always be even.</span>
The essential molecule that comprises an average of 60% of any living organisms' cells is water. Water is a molecule made up of two hydrogen atoms and one oxygen atom. Water is an essential part that makes up the matrix of the inside and outside membranes of, for example, tissues in the human body. Water, to a certain degree, also helps maintain balance of electrolytes and solutes that go in and out of the cell. It also maintains hydrostatic pressure in the circulatory system of the body via the balance of Starling Forces. These are just a few examples of the importance of water and hence why living things need so much of them. This is also why water is one of the first things astronauts look for in planets to determine if life is possible there or if there was life before.
Other important elements that make living things are nitrogen (N) and calcium (Ca). To serve as a reference point, we can look at the human body. The amount of nitrogen (N) in the body is about 3.2%. Calcium (Ca) on the other hand, is about 1.5%
