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Alexxandr [17]
3 years ago
9

An unfertilized egg cell has six chromosomes. After fertilization, how many chromosomes should the zygote have?

Biology
1 answer:
olganol [36]3 years ago
6 0

Answer:

12 chromosomes, because the basic (haploid) number of chromosomes is 6 (n: 6)

Explanation:

The unfertilized egg contains a basic (haploid) number of chromosomes (n), being in this case 6. In humans, for example, the gamete haploid cells have a basic n content of 23 chromosomes, while in somatic cells this DNA amount is duplicated (2n), being therefore 46 chromosomes that are organized into 22 pairs of autosomal chromosomes and two sex chromosomes (X and Y).  

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A unicellular organism must perform all functions necessary for life. A multicellular organism has specialized cells, tissues, organs, and organ systems that perform specific functions.
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What is a telomere? What happens to telomeres each time DNA is replicated? How do cells prevent this from occurring?
vredina [299]
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4 years ago
What product of the light-dependent processes of photosynthesis is needed by the light-independent processes
Iteru [2.4K]

Answer:

ATP and NADPH.

Explanation:

The light-dependent reactions convert light energy into chemical energy. The goal of the light-dependent reactions of photosynthesis is to collect energy from the sun and break down water molecules to produce ATP and NADPH. These two energy-storing molecules are then used in the light-independent reactions.

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7 0
3 years ago
3. In centaurs, the allele for curly tails (T) is incompletely dominant to the allele for straight tails (t). The hybrid genotyp
Reptile [31]

Answer:

a. Determine the allele frequencies of:

f(T) = 0.485 ≅ 0.48

f(t) = 0.515 ≅ 0.52

b. Determine the genotype frequencies of the exposed generation

  • F (TT) = 0.21
  • F (Tt) = 0.55
  • F (tt) = 0.24

the genotype frequencies of the next generation

  • F(TT) = 0.23
  • F(Tt) = 0.5
  • F(tt) = 0.27

Explanation:

Due to technical problems, you will find the complete answer and explanation in the attached files

Download pdf
3 0
3 years ago
Which of the following is not function of membrane protein :A-anchors for cytoskeleton element/B-receptor for external chemical
Mademuasel [1]

Answer:

c

Explanation:

act as carrier molecules for various solutes

3 0
3 years ago
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