Answer:
system
Explanation:
All organisms have some sort of biological organization which begins with atoms that join together to form molecules and macromolecules. These atoms and molecules make up the organelles such as mitochondria, nucleus of a cell. Several organelles associate to form a cell which is a basic unit of life
When different cells associate together, they form tissues such as bone tissues. A collection of several tissues makes up an organ such as bone to perform a specific task. Several organs associate to perform body functions. This group of organs is referred to as <em>an organ system</em>. For example, the skeletal system is made up of bones, cartilage, tendons and ligaments. They work together to perform various functions such as movement, creating of red blood cells etc.
The answer would be B. Cats.
Cats are the most advanced organisms between the options thus have the greatest amount of cell specialization.
Answer:
(a) 1/2; (b) no
Explanation:
Glucose-6-phosphate dehydrogenase deficiency (G6PD) is an X-linked recessive disorder and the woman's father was diseased so it means that woman is a carrier of the allele but has normal phenotype. It means that she will have XXᵇ genotype.
In contrast to this, her husband is diseased so his genotype will be XᵇY.
The Punnett square diagram related to the cross is attached.
(a) Proportion of their sons expected to be G6PD is 1/2:
They both may give birth to 4 progeny with genotypes XXᵇ, XᵇXᵇ, XY and XᵇY. It means they both may have 2 sons out of which one with genotype XᵇY will be diseased while the one with genotype XY will be healthy. So the proportion of their sons having G6PD is 1/2 or 50%.
(b) If the husband were G6PD deficient, the answer will not change.
The reason behind this is that this disease is caused by an allele located in X chromosome. But father contributes only Y chromosome to his son not X chromosome. The X chromosome will affect the genotype of his daughter not son that is why answer will not change. It means they will still have 1/2 of their sons diseased.
Answer:
RELATED
Three Ways That Genetic Diversity Occurs During Meiosis
By shakur thomas
During sexual reproduction, meiosis generates genetic variation in offspring because the process randomly shuffles genes across chromosomes and then randomly separates half of those chromosomes into each gamete. The two gametes then randomly fuse to form a new organism. Genetic variation stands as one of the key factors in evolutionary fitness and biological diversity. Reproductive cells undergoing meiosis make this possible, as the process has these specialized sex cells split and multiple after copulation.
Creating new organisms requires the process of meiosis, the process by which a fertilized egg cell splits into multiple cells. Genetic variation in sexual reproduction only occurs because meiosis randomly shuffles the genes of the two organisms mating.
Genetic Variation and Its Importance
Genetic variation in a population of organisms means that different organisms have different strengths and weaknesses. This acts as important facet of a species' ability to survive and increase its population because if new predators show up or food resources become scarce, many organisms will die. However, because of genetic variation some will survive because they can do things such as run faster or eat different foods. Those who survive will reproduce and repopulate the community. In terms of having toughness against harsh circumstances that threaten to kill off a population, genetic variation increases the chances that some members of a population will survive.
Chromosomes Crossing Over
The first way that meiosis generates genetic diversity occurs when homologous chromosomes exchange parts by crossing over. Early on in meiosis, during prophase I, homologous chromosomes pair up. Homologous chromosomes have similar genes with other homologous chromosomes: one chromosome came from the mother and one came from the father. During meiosis, they look for each other and stick together length-wise. During this time, they exchange parts of their arms with each other, like combing two deck of cards, shuffling, and then equally separating the two decks. The results in paired homologous chromosomes that now have regions of DNA that were formerly on the other chromosome.
Fan is electircal energy
Lamp's orignal energy source is electrical energy.