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Fiesta28 [93]
3 years ago
9

What was special about the nucleus?

Biology
1 answer:
Rzqust [24]3 years ago
7 0

Answer:

D) It held DNA

Explanation:

The nucleus controls and regulates the activities in a cell. It carries the genes or structures that contain the hereditary information. (DNA)

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What types of tissues make up the skeletal system
Burka [1]

Answer:

The skeletal system is your body's central framework. It consists of bones and connective tissue, including cartilage, tendons, and ligaments. It's also called the musculoskeletal system

Explanation:

MARK AS BRAINLIST!!

4 0
3 years ago
Read 2 more answers
If the frequency of the recessive allele for a gene is 0.3, calculate the expected frequency of heterozygotes in the next genera
Kisachek [45]
Q = recessive allele frequency = 0.3, and thus in H-W equilibrium there are ONLY two alleles, q (recessive) and
p (dominant). Therefore all of the p and q present for this gene in a population must account for 100% of this gene's alleles. And 100% = 1.00.
So p, the dominant allele frequency, must be equal to 1 - q --> p = 1 - q
p = 1 - 0.3 = 0.7.
Since heterozygotes are a combination of the p and q, we must again look at the frequencies of each genotype: p + q = 1, then (p+q)^2 = 1^2
So multiplying out (p+q)(p+q) = 1, we get: p^2+2pq+q^2 = 1 (all genotypes), where p^2 = frequency of homozygous dominant individuals, 2pq = frequency of heterozygous individuals, and q^2 = frequency of homozygous recessive individuals.
Therefore if the population is in H-W equilibrium, then the expected frequency of heterozygous individuals = 2pq = 2(0.7)(0.3)
2pq = 2(0.21) = 0.42, or 42% of the population.
Hope that helps you to understand how to solve population genetics problems!
7 0
3 years ago
Which of the following describes the structure formed when a probe
miv72 [106K]
It’s D a single stranded structure consisting of unlabeled DNA from the gene
7 0
3 years ago
What characteristics are associated with each layer of the mantle?
Vinvika [58]
The mantle is a layer inside a planetary bodybounded below by a core and above by a crust. Mantles are either made of rock or ices, and are generally the largest and most massive layer of the planetary body. Mantles are characteristic of planetary bodies that have undergone differentiation by density. The mantle is bounded on the bottom by the planetary core and on top by the crust. In addition to the Earth, the other terrestrial planets, a number of asteroids, and moonshave mantles.
8 0
3 years ago
Which of the following can typically decrease genetic variation?
lapo4ka [179]

QUESTION:Which of the following can typically decrease genetic variation?

toxins

predator-prey relationships

competition

new habitat

disasters

increased food supply

ANSWER:

1. toxins

2.predator- prey relationships

3.competition

4.new habitats

5. disasters


5 0
3 years ago
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