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nlexa [21]
3 years ago
11

1. All of these things are true about a theory except for..

Biology
1 answer:
pickupchik [31]3 years ago
6 0

Answer:

1.b

2.d

3a

Explanation:

i hope it's help

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Which of the following is would be considered a phenotype?
olasank [31]
All of the above options
6 0
4 years ago
Different ratios occur in crosses with single gene pairs or two gene pairs. What types of ratios are likely to occur in crosses
likoan [24]

Answer:

Genotype ratio: 1, 1:1, 1:2:1

Phenotype ratio: 1, 3:1

Explanation:

Single gene pair cross is also known as monohybrid cross. This means that only one gene usually with two alleles is observed and it express one trait.

For example, if we name the gene for a certain trait with A, the possible genotypes are AA (dominant homozygous), aa (recessive homozygous) and Aa (heterozygous). Possible crosses are:

P: AA  x  AA

F1 : all of them are AA

The same is with aa x aa (all of the offspring are with aa genotype)

P: AA  x  Aa

F1: AA Aa AA Aa  (genotype ratio 1:1) (phenotype ratio 3:1)

The same genotype ratio is  in aa x Aa (offspring will have aa Aa aa Aa-(genotype ratio 1:1) (phenotype ratio 1:1)

P: Aa x Aa

F1: AA Aa Aa aa (genotype ratio 1:2:1) (phenotype ratio 3:1)

P: AA x aa

F1: Aa Aa Aa Aa (1)

5 0
3 years ago
Which characteristics would be present in an air mass that develops over the Canadian Plains near the Arctic Circle?
olya-2409 [2.1K]

la verdad no se la repuesta si me la hubiera sabido si te la hubiera dicho

3 0
3 years ago
Explain why a muscle cell would have more mitochondria than a skin cell.
butalik [34]
Muscles need much more energy. Mitochondria are the powerhouse of the cell and produces all of the ATP that a cell needs. The more mitochondria there is, the more energy that is produced
8 0
3 years ago
a common fruit fly has eight chromosomes in a normal body cell. after a cell undergoes mitosis, how many chromosomes will each n
CaHeK987 [17]

Answer:

Each daughter cell will have 8 chromosomes. That is correct. By the end of mitosis, there are two daughter cells. Each daughter cell will have the same amount of genetic material as the parent  8 chromosomes.

Explanation:

Hope this helps helps

7 0
2 years ago
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