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Firlakuza [10]
3 years ago
10

New traits and variations in a population occur by

Biology
1 answer:
musickatia [10]3 years ago
3 0

New traits and variations in a population occur by sexual reproduction.  

<u>Explanation:</u>

Sexual reproduction is the process by which an organism reproduces by means of production and subsequent fusion of gametes.  Sexual reproduction involves the production of gametes. These gametes are formed by means of meiosis.

Meiosis is a type of cell division which involves the crossing over and other processes that involves the gene mixing and subsequent variations from the parents among the offsprings. Thus newer characteristics are formed among the population, which is termed as variations. This is essential for further evolution.  

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Suppose a newborn baby was accidentally mixed up in the hospital. In an effort to determine the parents of the baby, the blood t
Sladkaya [172]

Answer:a. Draw Punnett squares for each couple (you may need to do more than 1 square/ couple)

Baby 2 MUST belong to the Browns because Mr. Brown is the only parent with an A allele to

contribute… then the rest works out as follows:

b. To which parents does baby #1 belong? Why? Hint you may want to refer to your Punnett

squares.

Baby 1 must belong to the Smiths, because they are the only ones with the possibility of EACH

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Explanation:

6 0
3 years ago
How does crossing over add to the genetic diversity of sexually reproducing organisms?
neonofarm [45]
<span>Crossover is the first way that genes are shuffled to give rise to genetic diversity. Crossover takes place in sexual reproduction. Chromosomes line up side by side and break off pieces of themselves, then trade those pieces with each other. When they break at the same place (locus) in the sequence of base pairs, the result is an exchange of genes called genetic recombination. That is the normal way for crossover to occur. Genetic recombination ensures that the daughter cells produced have a different genetic makeup from the parent cell and thus diversity is created.</span>
8 0
3 years ago
When health care teams solve problems, it is important that in the final stage, all team members _____. Have a say in the goals
Nadusha1986 [10]

Answer:

The correct answer is ''understand their roles''

Explanation:

Teamwork in a health team is considered important as a way of dividing responsibilities, correctly attending to the roles in a work team and the functions of the figures that intervene in the teamwork in order to achieve recovery the health of the patient more quickly. Each of the health professionals in this group or team must have a role to fulfill the desired objective; the team is a group of individuals who cooperate to perform a particular routine activity; there is a link of reciprocal dependency that unites the members of the same team with the others. This vision is justified, for each professional to have a different perception of the situation, it is the “union” of the different perceptions that facilitates the understanding of the whole, allowing a glimpse of the patient as a whole. Usually, the general doctor assumes the role of knowing the patient in depth, in order to be able to guide on health problems and decide together with him or her the treatments and objectives to be achieved.

7 0
3 years ago
Taller trees have a canopy arrangement of leaves where the upper leaves tend to be smaller than the ones below them. How does th
larisa86 [58]
Its B since the lower leaves need sunlight to make food (photosynthesis)
8 0
3 years ago
According to most theories about the evolution of early life on earth, the atmosphere had an abundance of ammonia, methane, and
SIZIF [17.4K]

Answer:

A

Explanation:

<em>The correct option would be </em><em>A.</em>

<u>The presence of ammonia in the atmosphere of primitive earth provided the nitrogen found in the amine groups of amino acid and the nitrogenous bases in DNA. This has been proven through the simulation experiment of the primitive earth's atmosphere by Stanley Miller and Harold Urey.</u>

The water in the primitive atmosphere was formed from the condensation of water vapour from volcanoes that were characterics of the earth's environment while oxygen in itself is not needed for photosynthesis but a by-product of it.

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3 years ago
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