Answer:
Patterns of inheritance in humans include:
Autosomal dominant or recessive inheritance
X-linked dominant or recessive inheritance
Mitochondrial inheritance
Y-linked
Explanation:
Mitochondrial inheritance is the type of inheritance which arises from the mothers only. A person tends to inherit its mitochondrial DNA only from the mother and not from the father.
Autosomal inheritance is the pattern of inheritance seen by the alleles of genes present on the autosomal chromosomes.
X- linked inheritance is the pattern of inheritance depicted by the genes on the X chromosomes.
Y-linked inheritance is attributed to the pattern of inheritance depicted by the genes on the Y- chromosomes. However, very few genes are present on this chromosome.
Answer:
B. Genotypes
Explanation:
The genotype of an organism refers to the genetic makeup of that organism. It is the combination of all the genes contained on the chromosomes of that organism. Gregor Mendel, who is considered to be the Father of Genetics, discovered that certain factors are responsible for the physical characteristics of organisms and that they can be transferred from one generation to another. These factors are called GENES. Genes are located on X-shaped structures called chromosomes.
Hence, the isolation of chromosomes taken from tortoise blood samples refers to recording their GENOTYPE (genetic constituent).
The correct answer is D) The fossil record reveals intermediates that link different species. Hope this helps.
Answer:
The independent (or manipulated)variable is something that the experimenter purposely changes or varies over the course of the investigation. The dependent (or responding) variable is the one that is observed and likely changes in response to the independent variable.
Explanation:
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If water had weak surface tension, insects would not be able to land on or walk on water.
Surface tension is the force acting on the surface of water that makes it to behave like a stretched elastic skin.
Surface tension owes to the intermolecular attraction between water molecules. The molecules at the surface of water are drawn inwards by other molecules causing the molecules at the surface to contract. This surface tension enables insects to land on or walk on water.
So, without surface tension of water, insects would not be able to land on or walk on water.
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