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2 years ago

in pea plants, purple flowers (p) are dominant over white flowers (p). Show the cross between two heterozygous plants

Biology

1 answer:

Ostrovityanka [42]2 years ago

4 0

Answer:

P p

P PP Pp

p Pp pp

PP=Homozygous purple

Pp= heterozygous purple

pp=homozygous White

Explanation:

I tried to type out the cross. The bold letters are the heterozygous plants that you are crossing. and the normal letters are the offspring of the two heterozygous parents being crossed. Heterozygous means they are different alleles. Homosygous means the same alleles are present.

heterozygous= Pp

Homozygous= PP or pp

I hope this was the answer you were looking for!

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How does a mutation in the DNA affect the way proteins are made?

Vikentia [17]

Explanation:

B.) A mutation in the DNA results in a change in the mRNA and, ultimately, to a different protein structure.

Further Explanation:

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During the process of cell division, spontaneous changes within the genome can arise. These mutations are errors occur when copies of the DNA within the cell are made; mutations may range from small changes called single nucleotide polymorphisms, to large scale deletions, and additions which span multiple genes. There are two types:

somatic: these only occur within certain cells, and arise from environmental factors such as UV light
hereditary: occur within germ cells of the parent and later the fertilized egg which forms a zygote; these are present within all cells of the new organism.

Nucleic acids are comprised of smaller units called nucleotides and function as storage for the body’s genetic information. These monomers include ribonucleic acid (RNA) or deoxyribonucleic acid (DNA). They exist solely to encode and carry out protein synthesis.

The message on DNA, called genes is copied by RNA polymerase, to form mRNA complementary sequence to that of the DNA strand in transcription. These are then translated into proteins in ribosomes. Mutations in DNA sequences affect the corresponding mRNA and thus the protein encoded.

They are maintained within cells, as they form new traits called alleles, which may confer adaptations that increase the fitness of a species, along with ensuring survival by conferring a protective advantage.

e.g. sickle cell anemia, a disease caused by a mutation, confers protection against the disease malaria.

Learn more about mutations at brainly.com/question/4602376

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Learn more about transcription at brainly.com/question/11339456

Learn more about DNA and RNA at brainly.com/question/2416343?source=aid8411316

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3 years ago

yaroslaw [1]

The question is incomplete as it does not have the option which are:

Favorable genes from parental generations provide advantageous characteristics to the hybrid species.
Hybridization produces offspring traits that allow different species to survive in extreme environments.
Inherited traits passed on from parental generations make hybrid species more susceptible to disease.
Hybrid species display more adaptation due to their reduced genetic diversity

Answer:

Favorable genes from parental generations provide advantageous characteristics to the hybrid species.

Explanation:

The white cattail is the plants which grow in the wetlands that are they are adapted to grow in the wetlands. The white cattail species in nature is the result of natural hybridization that is mixing of the genes of two different species of the same genus.

The white cattail can when grown in the Midwestern states well adapted to grow in that area and the reason for this could be accounted that the genes from the parental plants provided many advantages to the newly formed hybrid species.

Thus, the selected option is correct.

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3 years ago

How was biotechnology improved farming and modern agriculture

Triss [41]

Biotechnology has enabled to improve farming techniques and crop production around the world by increasing plants' resistance to diseases and pests; reducing pesticide applications; and maintaining and improving crop yields.

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goblinko [34]

Answer:

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