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valentinak56 [21]
3 years ago
11

What group are mammals from ?

Biology
2 answers:
Dafna11 [192]3 years ago
8 0
There are three groups of mammals which are monotremes, marsupials, and placental.
raketka [301]3 years ago
6 0

These three groups are monotremes, marsupials, and the largest group, placental mammals.

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Which of the following is homozygous dominant? a AA b Aa c aa
GarryVolchara [31]

Answer: a). AA

Explanation: Every trait is controlled by at least a pair of gene. Genes have different forms known as alleles. Alleles can be dominant or recessive. A dominant allele expresses itself in the presence of a recessive allele and masks the effect of a recessive allele. A recessive allele cannot express itself in the presence of a dominant allele and it's effect is masked by a dominant allele. Dominant alleles are usually written in upper cases such as A, T, while recessive alleles are usually written in lower cases such as a, t. The two alleles that determines a trait is called a genotype. A genotype can be homozygous if the two alleles are identical such as in AA or aa

and can be heterozygous if the two alleles are not identical such as in Aa, Tt.

6 0
3 years ago
Cuales fueron los primeros grupos de peces con mandíbulas ?
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Answer:

Explanation:

Placoderms were the first jawed fish; their jaws likely evolved from the first of their gill arches. in spanish  

placodermos

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3 years ago
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Four children of a man and woman who are second cousins have too few teeth, which is an autosomal recessive condition called oli
adoni [48]

Answer:

B) a nonsense mutation; this is because a nonsense mutation results in the change of a regular amino acid codon into a stop codon, which ceases translation. This fits with the problem's description of the protein that causes the symptoms as too short, as translation is the process by which proteins/polypeptides are created. A missense mutation would not be the answer because it still codes for an amino acid, which would not shorten the protein. A duplication of the gene would probably just lengthen the protein or not affect its length at all.

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Which of the following is a trait that cannot be inherited through genetic information
Alchen [17]

Answer:

i think its B

Explanation:

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2 years ago
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