What do the letters R and I represent in Figure 11 7?
Infer What do the letters R and I represent in figure 11-7? They represent dominant and recessive alleles.
What is the main purpose of the cycle shown in Figure 8 3?
What is the main purpose of the Calvin cycle shown in Figure 8-3? During photosynthesis light energy is converted to the energy in chemical bonds. What also happens according to the predictions of the second law of thermodynamics?
During which stage might new allele combinations form identify the stage?
Prophase I: The homologous chromosomes line up together. During this time, a process that only happens in meiosis can occur. This process is called crossing over (Figure below), which is the exchange of DNA between homologous chromosomes. Crossing over forms new combinations of alleles on the resulting chromosome.
How many alleles does each pea plant gamete have for height?
four alleles from each parent. 6 If a pea plant’s alleles for height are tt, what is true of its parents? Both parents were tall.
What do R and R represent?
rest and recreation. rest and recuperation. rock-‘n’-roll.
Could the red snapdragons shown in P generation of Figure 11 7 ever have white offspring?
Could the red snapdragons shown in the P generation of Figure 11-7 ever have white offspring? Explain your answer. It is not possible for the red snapdragon to have white offspring. They are homozygous (RR) and therefore do not carry any white alleles.
Which of the processes shown in Figure 8 2 Do not use a cell’s energy?
Which of the processes shown in Figure 8-2 do not use a cell’s energy? During photosynthesis light energy is converted to the energy in chemical bonds.
What are the 3 inputs of the Calvin cycle?
The Calvin cycle has three stages. In stage 1, the enzyme RuBisCO incorporates carbon dioxide into an organic molecule. In stage 2, the organic molecule is reduced. In stage 3, RuBP, the molecule that starts the cycle, is regenerated so that the cycle can continue.
How can genetic recombination through segregation and crossing over during meiosis lead to variation in the offspring?
In crossing over, genetic information is exchanged between homologous chromosomes. This exchange creates new combinations of genes, leading to increased genetic variation in the offspring.
What is the ploidy of the zygote produced by fertilization haploid or diploid?
Answer and Explanation: The ploidy of the zygote produced by fertilization is diploid. Diploid means it has two copies of each chromosome, one from the egg and one from the sperm. During fertilization, two haploid gametes come together.
What is law of dominance Class 10?
Mendel’s law of dominance states that: “When parents with pure, contrasting traits are crossed together, only one form of trait appears in the next generation. The hybrid offsprings will exhibit only the dominant trait in the phenotype.” Law of dominance is known as the first law of inheritance.
Will a plant with a genotype of TT be tall or short?
tall
Phenotypes for plant height are tall or short. TT and Tt genotypes both expressed the tall phenotype because the T is dominant to t. Only the tt genotype expressed the short phenotype.
…
| D | d | |
|---|---|---|
| d | Dd | dd |
What is RR and RR?
An individual who carries two copies of the same allele (i.e. RR or rr) is called a homozygote (homo = same, zygote = embryo). Homozygotes produce genoctypially identical offspring when allowed to self-fertilize. There are dominant homozygotes (i.e. RR individuals) and recessive homozygotes (i.e. rr individuals).
What genotype is RR?
The (RR) genotype is homozygous dominant and the (rr) genotype is homozygous recessive for seed shape. In the image above, a monohybrid cross is performed between plants that are heterozygous for round seed shape. The predicted inheritance pattern of the offspring results in a 1:2:1 ratio of the genotype.
What is the phenotype ratio of the offspring in the Punnett square shown in Figure 11 2?
What is the phenotype ratio of the offspring of the plants in the Punnett square in Figure 11-2? The phenotype ratio is 9 round, yellow seeds; 3 round, green seeds; 3 wrinkled, yellow seeds; 1 wrinkled, green seed.
When a red and white snapdragon are crossed all the offspring are pink if two pink snapdragons are crossed what percentage of the offspring will be white?
Self pollination of pink snapdragon flowers results in 50% pink offspring.
What are photosystems 1 and 2 found?
Photosystem 1: Photosystem 1 is located on the outer surface of the thylakoid membrane. Photosystem 2: Photosystem 2 is located on the inner surface of the thylakoid membrane.
What are 2 ways in which cells use the energy provided by ATP?
ATP hydrolysis provides the energy needed for many essential processes in organisms and cells. These include intracellular signaling, DNA and RNA synthesis, Purinergic signaling, synaptic signaling, active transport, and muscle contraction.
Is sugar an input or output?
What Do Plants Make During Photosynthesis Process?
| Characteristic | Photosynthesis | Cellular Respiration |
|---|---|---|
| Type of organism | Plants, algae and bacteria | All cells |
| Inputs | Sunlight, water and carbon dioxide | Oxygen and glucose |
| Outputs | Oxygen and glucose | ATP, water and carbon dioxide |
Where are ATP and NADPH used?
ATP and NADPH produced by the light-dependent reactions of the photosystems are used by the Calvin cycle in the stroma of the chloroplast.
How do independent assortment crossing over and random fertilization affect the rate of evolution?
Random fertilization increases genetic diversity.
When a male gamete and a female gamete finally meet, each is the result of an immense number of genetic possibilities created during independent assortment and crossing over. Human diploid cells have 23 pairs of chromosomes.
What will happen to the daughter cells of crossing over and recombination do not occur in meiosis?
If crossing over did not occur until sometime during meiosis II, sister chromatids, which are identical, would be exchanging alleles. Since these chromatids are identical, this swap of material would not actually change the alleles of the chromatids.
Which of the following represents Dikaryotic and diploid condition respectively?
The 2n represents diploid condition. It means the cell possesses two sets of chromosomes. For example, in human 46 chromosomes shows 2n condition. The n + n represents dikaryotic condition.
What ploidy level is the endosperm found within the seeds of flowering plants?
3n
Ploidy level of endosperm is generally triploid or 3n.
What is the law of dominance of trade explain with an example class 10th?
In simple words, the law of dominance states that recessive traits are always dominated or masked by dominant trait. For example, when pea plants with round seeds (RR) are crossed with plants with wrinkled seeds (rr), all seeds in F1 generation were found to be round (Rr).