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spin [16.1K]
3 years ago
12

PLZ EXPLAIN, AND I NEED HELP NOW!

Biology
2 answers:
saul85 [17]3 years ago
5 0

Answer:

6 chromosomes

Explanation:

Leni [432]3 years ago
5 0

Answer:

The gametes or sex cells produced by the organism will have 6 chromosomes if the organism has 12 chromosomes.

Explanation:

The diploid organism has all chromosomes in pairs, one chromosome inherited from male parent & another chromosome in the pair is inherited from the female parent. If an organism has 12 chromosomes, it has 6 different types of chromosomes, differing from one another in length, the position of centromeres and genes present on these. Six different types of chromosomes constitute a haploid set of chromosomes. Two chromosomes of the same type are called homologous chromosomes and these constitute a homologous pair. The cells producing sex cells or gametes undergo meiosis (reduction division) so that each gamete contains only one chromosome of a homologous pair. The gametes are haploid, having half the number of cells as compared to somatic cells.

Hope this helps have a great day/night! :}

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Select all that apply. Choose the cells that are diploid. egg nerve bone sperm muscle
Natali5045456 [20]
The diploid cells in this case include nerve cell, bone cell and muscle cell. A diploid cell is a cell that contains two sets of chromosomes, which is double the haploid chromosome number. They include all the somatic cells with exception of germ line cells. Gametes are haploid cells meaning they only have one set of chromosomes. During sexual reproduction, gametes (sperm and egg cells) fuse at fertilization to form a diploid zygote which develops into a diploid organism.
8 0
3 years ago
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What soil composition would be best for availability of nutrients, water, and root development? A. equal amounts of sand, clay,
Travka [436]

Soil composition would be best for availability of nutrients, water, and root development higher proportion of humus; lower amounts of clay and sand

Compared to the lower soil layers, the topsoil or surface soil often includes more organic matter and air but less clay. The topsoil typically has the highest concentration of plant roots and is more fertile than the other layers.

  • Nutrient management includes managing the composition of the soil. Minerals, organic material, water, and air are the fundamental elements of soil. Typically, 45% of the soil is made up of minerals. 5% organic material 20–30% water and 20–30% air are used. At best, these percentages are merely generalizations.
  • Numerous nutrients are found in soil, which are obtained from dead plants and animals. The plants eat these nutrients as nourishment. So soil contributes to the growth of plants by giving them sustenance in the form of nutrients.

To learn more about Soil composition it visit : brainly.com/question/15015701

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3 0
1 year ago
How does DNA homology measure genetic relatedness ?
lesya [120]

Answer:

by the nitrocellulose membrane filter method. (more info below)

Explanation:

Genetic relationship between mycoplasma as determined by nucleic acid homology.  DNA from each of the mycoplasma isolates tested was reacted separately by complementary RNA synthesized with homologous or heterologous DNA as a primer. The amount of DNA-RNA hybrids formed was tested using the method of the nitrocellulose membrane filter.

hope this helped!

7 0
3 years ago
A researcher while working in vitro (outside cell) added helicase enzyme which resulted in the untwisting of the DNA helix. But
STALIN [3.7K]
Topoisomerase is the enzyme that can be added to correct the untwisting that is led to strain ahead of the replication fork. 
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3 years ago
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Staphylococcus aureus is grown in heart-infusion broth at 37°C. If you start exponential phase with 100 cells, and after 90 minu
Nikolay [14]

Answer:

30 minutes

Explanation:

Bacteria reproduce by binary fission, a process by which one parent cell divides to form 2 progeny cells. Because one cell produces 2 progeny cells, bacteria are said to undergo exponential ( logarithmic) growth.

As in the case of staphylococcus aureus, we start with 100 cells ,  and after 90 minutes number becomes 800 that means  , firstly the cells doubled (100 x 2 = 200 ) after 30 minutes. Again after 30 minutes they doubled ( 200 x 2 =400 ) and again after 30 minutes they doubled (400 x 2 = 800). So in 90 minutes 100 cells became 800 cells.

Hence the generation time for S.aureus is 30 minutes.

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