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Cloud [144]
3 years ago
5

In the living world, there is a great deal of genetic variation. The genetic information of dogs differs from the genetic inform

ation of cats; the genetic information of plants differs from the genetic information of bacteria; the genetic information of a child differs from the genetic information of his or her father; and so on.
Which of the following is least likely to be a source of genetic variation among living organisms?
Biology
1 answer:
xxTIMURxx [149]3 years ago
3 0

asexual reproduction

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_____ are within the inner membrane of the mitochondria and increase its ability to create ATP.
iVinArrow [24]
Matrix are within the inner membrane of the mitochondria.
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A gene that affects hair length in dogs has two alleles. The allele for short hair (L) is dominant
Lelechka [254]

Answer:

This question lacks options, the options are:

A. Only recessive alleles are inherited from homozygous parents.

B. Dominant alleles grow weaker as they are passed from parents to offspring.

C. Only the parent with a dominant allele can pass that allele to offspring in sexual reproduction.

D. A heterozygous parent has an equal chance of passing either the dominant allele or the recessive allele to offspring.

The answer is D

Explanation:

This question involves a single gene coding for hair length in dogs. The allele for short hair (S) is dominant over the allele for long hair (s). This means that allele 'S' will always mask the phenotypic expression of allele 's' in a heterozygous state.

According to the question, two heterozygous dogs (Ss) were crossed to produce 6 shortt-haired offsprings and 2 long-haired offsprings. An heterozygous organism is that which contains two different alleles for a particular gene i.e. a combination of dominant and recessive alleles.

Based on this, during meiosis or gamete formation, an heterozygous dog (Ss) will produce gametes with the short hair allele (S) and long hair allele (s) in equal proportion i.e. 50-50. When the two gametes containing the recessive alleles (s) produced by each heterozygous parent fuses, an offspring with a recessive phenotype (long hair, ss) is produced.

Hence, a long-hair

phenotype can appear in the offspring of two short-haired dogs because a heterozygous parent has equal chance of passing either the dominant or recessive allele to the offspring.

6 0
3 years ago
Explain how oxygen is cycled between the plant and woman shown in the picture.name the specific processes involved
julia-pushkina [17]
<h3>Answer & Explanation .:</h3>

---------------------------------

The woman inhales oxygen produced by the plant in the process of PHOTOSYNTHESIS,

and she use it inside her body to release energy from the food molecules by the process of RESPIRATION also as a result of respiration Carbon dioxide gas is produced, which she exhales.

That carbon dioxide is absorbed from air by the plant and use it to prepare food from it in the presence of sunlight by the process of PHOTOSYNTHESIS in which oxygen is also produced as byproduct which is then released to air and is then inhaled by the woman again to repeat the cycle.

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4 0
3 years ago
All animals with eyes or the eyespots that have been studied so far share a gene in common. When the gene causes lack of eyes in
RSB [31]

Answer:

The correct answer is option C.

Explanation:

PAX5 refers to the member of the Pax gene family, which is, accountable for conducting the genetic information, which will encode the Pax-6 protein. It functions as a master control gene for the maturation of eyes and other sensory organs. Pax6 functions as a regulator in the formation of patterns and coordination needed for the proliferation and differentiation to take place effectively. This ensures that the procedures of oculogenesis and neurogenesis are taking place efficiently.  

The PAX6 gene was the outcome of evolution in earlier animals comprising eyespots or eyes. The similar PAX6 gene generates distinct kinds of eyes in distinct species because of the difference in its control of PAX6 expression. At the time of the evolution of vertebrates, the biological clock opsin’s rh gene was chosen as a gene for visual receptor pigments.  

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What are the elements of Carbohydrates, Lipids, Proteins, and Nucleic Acids?
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Proteins- carbon, hydrogen, and oxygen
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