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Tatiana [17]
3 years ago
12

What are dominant and recessive alleles?

Biology
2 answers:
DanielleElmas [232]3 years ago
8 0
Well firstly, alleles are different versions of genes. A dominant allele will show it's trait regardless of if the organism only has one copy of the allele (heterozygous). A recessive allele will show the effect only if two copies of the allele are present (homozygous) 
SSSSS [86.1K]3 years ago
5 0
If the two alleles are different, the plant is said to be a hybrid or heterogeneous for that traits. As Mendel noted, when both alleles are present, one allele masks or hides the other. The stronger allele is said to dominant, and the weaker allele that is masksed is said to be recessive.
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What is the function of the flower stalk
BigorU [14]
The main function of the flower stock is transporting food in the form of water and nutrients to different parts of the plant with the help of xylem and phloem. Xylem helps in transporting cells that help in carrying water and minerals from the roots while phloem transports food in the form of sugar to all parts of the plant. The stock also helps in keeping the the flower steady above the plant folliage. This directly helps in the process of pollination of the plant. The flower that is held steady above the folliage attracts bees and other insects through which it continues the process of pollination.
3 0
3 years ago
EXPLAIN why the 4 cells at the end of cytokinesis are different from each other
zhuklara [117]
<h3><em>Answer:</em> </h3>

<u>Cytokinesis is the physical process of cell division, which divides the cytoplasm of a parental cell into two daughter cells. It occurs concurrently with two types of nuclear division called mitosis and meiosis, which occur in animal cells. Mitosis and each of the two meiotic divisions result in two separate nuclei contained within a single cell. Cytokinesis performs an essential process to separate the cell in half and ensure that one nucleus ends up in each daughter cell. Cytokinesis starts during the nuclear division phase called anaphase and continues through telophase. A ring of protein filaments called the contractile ring forms around the equator of the cell just beneath the plasma membrane. The contractile ring shrinks at the equator of the cell, pinching the plasma membrane inward, and forming what is called a cleavage furrow. Eventually, the contractile ring shrinks to the point that there are two separate cells each bound by its own plasma membrane. </u>

4 0
2 years ago
In this field of sunflowers, variation exists. Some flowers are tall, others short, and finally some plants are an intermediate
Eddi Din [679]

Answer:

c

Explanation:

Sexual: meiosis, crossing over, and random assortment of chromosomes; pollination

5 0
2 years ago
Which is NOT true of eukaryotic cells?
KiRa [710]

Answer:

Option (c).

Explanation:

Eukaryotes may be defined as the organism that contains the well defined nucleus and membrane bound cell organelle. The eukaryotes contains morte cell organelles as compared with prokaryotes.

The ribosomes of eukaryotes are larger than the ribosomes of prokaryotes. The 80'S ribosomes are present in eukaryotes whereas 70'S ribosomes are present in prokaryotes.

Thus, the correct answer is option (c).

3 0
3 years ago
The fossil record shows that the average size of black bears was large during cold glacial periods and got smaller during warmer
snow_tiger [21]

Answer: directional

Explanation:

Because only one trait was favored. When bears are cold, being bigger helps them better adapt to the coldness. Adjusting to the weather is one trait.

3 0
3 years ago
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