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Nataly [62]
3 years ago
12

What are five levels of at-risk species?

Biology
1 answer:
Sonja [21]3 years ago
7 0

Answer:

vulnerable, endangered, critically endangered, and extinct in the wild and Extirpated.

Explanation:

sorry if this is wrong

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In humans, the eye color and hair color genes are located on different chromosomes. Brown eyes (B) are dominant to blue (b), and
Andrej [43]

Answer:

Man's genotype: Bbdd

Woman's genotype: bbDd

First child's genotype: Bbdd

Second child's genotype: bbDd

Explanation:

This is a dihybrid cross involving two genes; one coding for eye color and the other for hair color in humans. The allele for brown eye (B) is dominant over the allele for blue eyes (b) in the first gene while the allele for dark hair (D) is dominant over the allele for red hair (d) in the second gene.

According to the question, A man with brown eyes and red hair will possibly possess genotypes: BBdd or Bbdd while a woman with blue eyes and dark hair will possibly have genotype: bbDD or bbDd. Considering the fact that they produced children with recessive traits for both gene (blue eyes and red hair), it means that they are heterozygous for their dominant trait. This means that the ideal genotype for the man is Bbdd since he will produce gametes containing B and b alleles for the first gene while the ideal genotype for the woman is bbDd since it will produce gametes with D and d allele for the second gene.

Hence, a child with brown eyes and red hair will possess genotype: Bbdd since he/she cannot receive two dominant alleles for the first gene from both parents. A child with blue eyes and dark hair will have genotype: bbDd since he/she cannot receive two dominant alleles of the second gene from both parents.

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3 years ago
The Sun is
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D a medium sized star because the largest star is canis majoris and the smallest star is brown dwarf..☺
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Which statement about the DNA replication process in prokaryotes is true?
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the answer is definitly D.)

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3 years ago
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Which kingdom does a multicellular living organism most likely belong to? Archaea Bacteria Eubacteria Fungi
ANEK [815]
It is Fungi. All the other ones are unicellular
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Length of DNA and RNA
jolli1 [7]

Answer:

. A DNA molecule in a human chromosome can be up to 250 million nucleotide-pairs long; in contrast, most RNAs are no more than a few thousand nucleotides long, and many are considerably shorter.

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3 years ago
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