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3 years ago

He _____________ rate is the level at which a population remains stable.

1 answer:

8 0

The replacement rate is the level at which a population remains stable.
Replacement rate (level) is the fertility rate and represents the average number of children born per woman at which a population exactly replaces itself from one generation to the next (without migration). More precisely, it is the amount of fertility needed to keep the population the same, from generation to generation. As a result of the total fertility rate, there will be no increasing or decreasing of the population, it will be stable.

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Interpret the Punnett square. A Punnett square with four rows and four columns. The first row is labeled big-A, big-B. The secon

Naddika [18.5K]

Answer:

The genotypes shown represent gametes. False

One of the possible offspring genotypes is AABB. True

The parent genotypes are ABAbaBab×ABAbaBab. True

This cross shows two alleles for two traits. True

The gametes are diploid and the offspring are diploid. False

The genotypes shown are correct for a dihybrid cross. True

Explanation:

║ AB ║ Ab ║ aB ║ ab

AB║ABAB ║ ABAb║ABaB║ABab

Ab║ AbAB║ AbAb ║AbaB║Abab

aB║aBAB ║ aBAb ║aBaB║aBab

ab║abAB ║ abAb ║abaB ║abab

Drawing the Punnett square we can deduce that the genotypes shown do not represent gametes because there are more than 2 pairs of chromosomes.

As shown in the second column second row of the Punnett square one of the possible genotypes is AABB, it is distributed different (ABAB) but it is the same possible genotype.

The parents' genotypes are the ones that are written in the first columns and first row, they coincide with the ones in the statement.

A dihybrid cross shows the cross between two genes that have different traits.

The gametes are always haploid and the offspring are diploid because the two gametes come together.

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3 years ago

Which nucleic acid is pictured on the right

Charra [1.4K]

Where is the Picture ?

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3 years ago

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Crossing-over can occur during meiosis I in:

m_a_m_a [10]

Answer:

b. metaphase l.

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A student claims that if the animal producing the spermatozoa has a mutation in a mitochondrial gene, the probability that any o

galina1969 [7]

Answer:

The student is wrong, spermatozoa are germinal cells and therefore mitochondrial mutations (likewise genomic nuclear mutations) are inherited by offspring

Explanation:

Although the probabilities of inheriting a mutation from a single sperm cell are low, it since an organism produces millions of sperm cells throughout its life span, the mutations in the germinal cells (i.e., sperms and ovules) are inherited by offspring

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Answer:

When blood clotting is activated, fibrinogen circulating in the blood is converted to fibrin, which in turn helps to form a stable blood clot at the site of vascular disruption.

I hope this answer helps you out. If you have any questions let me know. Have a good day :).

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