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3 years ago

What is sex linked inheritance

Biology

1 answer:

nasty-shy [4]3 years ago

7 0

Sex linked inheritance is a trait that is passed through generations in which is linked directly to an individuals gender or sex. most of the time sex linked inheritance is seen in males however it can be viewed in females.

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Ecosystems include food webs that show predation and prey interactions among organisms. But ecosystems have many more relationsh

AnnZ [28]

Answer:

Explanation:

Food webs describe the relationships — links or connections — among species in an ecosystem, but the relationships vary in their importance to energy flow and dynamics of species populations. Some trophic relationships are more important than others in dictating how energy flows through ecosystems. Some connections are more influential on species population change. Based on different ways in which species influence one another, Robert Paine proposed three types of food webs based on the species of a rocky intertidal zone on the coast of Washington (Ricklefs 2008, Figure 2). Connectedness webs (or topological food webs) emphasize feeding relationships among species, portrayed as links in a food web (Paine 1980). Energy flow webs quantify energy flow from one species to another. Thickness of an arrow reflects the strength of the relationship. Functional webs (or interaction food webs) represent the importance of each species in maintaining the integrity of a community and reflect influence on the growth rate of other species' populations. As shown in Figure 2, limpets Acmaea pelta and A. mitra in the community consume considerable food energy (energy flow web), but removal of these consumers has no detectable influence on the abundance of their resources (functional web). The most effective control was exerted by sea urchin Stronglocentrotus and the chiton Katharina (Ricklefs 2008).

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3 years ago

Which of the following is NOT an outcome of high population density?

In-s [12.5K]

Answer:

where are the options at

8 0

3 years ago

The honeybee has 32 chromosomes in their somatic cells. They undergo meiosis but can

PtichkaEL [24]

Answer: 32 chromosomes, they are clones of the parent drone

Explanation:

The production of offspring drones without fertilization means that offspring that are produced are produced by mitosis, which results in daughter cells that are clones of the parent. They have the same amount of chromsomes as the parent drone, which is 32.

7 0

3 years ago

1. Proteins are one of the four main types of

Maru [420]

Answer:

biomolecules

Explanation:

3 0

3 years ago

In a certain group of African people, 4% are born with sickle-cell disease, an autosomal recessive disorder. Heterozygous indivi

love history [14]

Answer:

the correct answer is C) 32%

Explanation:

Sickle-cell anaemia is an autosomal recessive genetic disorder. Individuals with the homozygous recessive have sickle-shaped blood cells. Whereas, individuals with heterozygous are only carrier of sickle cell trait. The carrier individuals are resistant to malarial parasite and do not have malaria.

As per the question, 4% of an African population is born with sickle-cell disease, then the percentage of the population is heterozygous and resistant to malaria will be:

Hardy-Weinberg formula is equilibrium,

p² + 2pq + q² = 1

p = frequency of the dominant allele in the population

q = frequency of the recessive allele in the population

p2 = percentage of homozygous dominant individuals

q2 = percentage of homozygous recessive individuals

2pq = percentage of heterozygous individuals

Given, homozygous recessive for this gene (q2) is 4% which is 0.04, the square root (q) is 0.2 (20%) then p should be 1-0.2 = 0.8 (20%).

Thus, the frequency of heterozygous individuals = 2pq.

2 (0.8 x 0.2) = 0.32 (32%).

4 0

3 years ago