Which of the following involves the expression of 2 genes at the same time?
O Sex-linked
Incomplete dominance
0 Complete Dominance
o Codominance

Which Of The Following Involves The Expression Of 2 Genes At The Same Time?O Sex-linkedIncomplete Dominance0

Answers

Answer 1

Answer:

codominance

Explanation:

means that more than one type of dominant allele for the same Gene is present if black and white fur are dominant,then heterozygous (Aa) offspring would be spotted with black and white.

Answer 2

Codominance refers to the expression of two genes simultaneously. Heter0zyg0us individuals express both phenotypes. So the answer to the question is D. Codominance.

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Sex-linked ⇒ Refers to the gene that is linked to one of the sex chromosomes. In general, genes are linked to the X chromosome.

Incomplete dominance ⇒ Refers to the cases in which the heter0zyg0us individual expresses an intermediate phenotype between the dominant and the recessive phenotypes. Neither of the involved alleles completely dominates over the other one.

Complete dominance ⇒ When the dominant allele completely masks the recessive allele, we talk about complete dominance. This is the case of individuals that are heter0zyg0us for a particular gene and express the dominant trait. The dominant allele is hiding the expression of the recessive allele. Many genes show complete dominance.

CODOMINANCE ⇒ Refers to those cases in which a phenotype expresses two alternative variants inherited from each h0m0zyg0us parent.

When two individuals, who are h0m0zyg0us and different for a trait, are crossed they produce heter0zyg0us individuals.  

In codominance, Heter0zyg0te individuals, instead of showing an intermediate phenotype -which is the case of incomplete dominance-, express both alleles.

Their phenotype is an additive expression of their parent's genes. Both alleles are equally expressed.

A typical example of codominance is the case of speckled chicken.

Speckled chickens (BW) are the product of the cross of a black individual (BB) with a white individual (WW). Their progeny will express both genes as speckled feathers.

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Answers

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Answer:

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Explanation:

Answer:

We depend on forests for our survival, from the air we breathe to the wood we use. Besides providing habitats for animals and livelihoods for humans, forests also offer watershed protection, prevent soil erosion and mitigate climate change.

Explanation:

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Answers

The answer would be b. Fluorescence

When a particular wavelength of light, such as ultraviolet (UV) light, electron beams, or x-rays, are focused on a mineral, fluorescence takes place, hence option B is correct.

What is the property of minerals?

Calcite, fluorite, and sodalite are among the more popular fluorescent minerals, however there are many more as well. When exposed to UV light, many gemstones, including diamonds, rubies, emeralds, amber, and opal, will glow

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Therefore, nearly everywhere that has a good assortment of white light minerals also has fluorescent minerals, hence option B is correct.

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Answer:

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Answer:

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Answer:

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Explanation:

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Answers

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Answer:

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Explanation:

Photosynthesis and Cellular Respiration are both biological processes. One is the reverse of the other.

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The answer should be D

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Answer:

During the day, the earth is heated by the sun. If skies are clear, more heat reaches the earth's surface (as in the diagram below). This leads to warmer temperatures. However, if skies are cloudy, some of the sun's rays are reflected off the cloud droplets back into space.

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Please select the word from the list that best fits the definition

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Answer:

Momentum.

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a measure of how difficult it is to stop a moving object; equals the product of mass and velocity.

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Answers

Answer:

Explanation: yes would cause problems with the embryo because a sperm and egg have 23 chromosomes each half mom half dad.

The sperm cell and the egg cell contain 46 chromosomes each, 46 + 46 = 92; a developing embryo would not survive if it contained 92 chromosomes.

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This process results in the restoration of the diploid state, the formation of a zygote through the process of egg activation, and the beginning of a series of mitotic divisions that leads to cell differentiation and embryo development.

When a sperm and a female act during sexual contact, an egg is created and implanted in the female's uterus, resulting in fertilization. The sperm enters the fallopian tube, passes through the ovum's zona pellucida layer, and fuses with the egg to create the zygote (fertilized egg).

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As a naturalist, you are responsible for training volunteers in the identification of the types of amphibians. The volunteers will use this information to correctly describe the animals to school groups that will visit your nature center. The training documentation for the volunteers lists important characteristics of the different groups of amphibians, but you notice that one of the items on the list is incorrect. Indicate which description is not correct.
A. Frogs, toads, and most salamanders have four legs whereas caecilians are legless.
B. While some frogs may advertise their distasteful nature by bright coloration, salamanders always have cryptic coloration.
C. Some adult salamanders retain larval characteristics such as external gills.
D. Most caecilians can be found burrowing in the soil of tropical forests.

Answers

Answer:

B. While some frogs may advertise their distasteful nature by bright coloration, salamanders always have cryptic coloration.

Explanation:

Amphibians are vertebrates which can live both on land and in water. they are cold-blooded and therefore, depend on warmth from sunlight to become warm and active. Their young live fully in water respire using gills. The adults have moist skins through which they respire and therefore, live in moist places or near water to keep their bodies from drying out. Many adult amphibians also have poison-producing glands in their skin to ward off predators. Poisonous amphibians usually display a warning coloration. . The species in this group include frogs, toads, salamanders, caecilians and newts.

Considering the above descriptions:

A. Frogs, toads, and most salamanders have four legs whereas caecilians are legless.

True: Caecilians are a group of limbless, wormlike or serpentine amphibians that mostly live in underground burrows or in substratum of shallow streams.

B. While some frogs may advertise their distasteful nature by bright coloration, salamanders always have cryptic coloration.

False: Some frogs such as poison frogs as well as some salamanders such as the California newt and the red eft which a brightly colored terrestrial juvenile form of the eastern newt is highly poisonous. advertise their distasteful nature by bright coloration.

C. Some adult salamanders retain larval characteristics such as external gills.

True: Some adult salamanders retain larval characteristics such as external gills. e.g. species such as the mudpuppy (Necturus maculosus) retain their gills throughout their lives.

D. Most caecilians can be found burrowing in the soil of tropical forests.

True: Caecilians are a group of limbless, wormlike or serpentine amphibians that mostly live in underground burrows or in substratum of shallow streams.

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Answers

Answer:

Phospate groups

Explanation:

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Answers

Answer:

C. Energy Star

Explanation:

The government attempt to increase energy efficiency is carried on by American Council for an Energy Efficient Economy.

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Energy has become a major key player in today's world as technology can not be developed independent of energy supply. As such there is a huge need for the conservation of energy.

Therefore, the government attempt to increase energy efficiency is carried on by American Council for an Energy Efficient Economy.

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Answers

Answer:

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Answer:

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