I am very grateful to the Minister for his consideration of what I think are difficult areas in this Bill, which I think remain—we have not solved the problem yet. One of the things I really loathe in Committee is people who move an amendment then take a very long time making a long speech, which bores everybody because they have already heard it, but I feel I have to address a few points specifically. I will not do it again later in this Bill. I think I have views on every single amendment, but I will be careful not to mention them.
The noble Baroness, Lady McIntosh of Pickering, mentioned Dolly the sheep. I think Dolly the sheep is a particularly interesting issue, because one thing which will not have escaped your Lordships’ attention is that Dolly the sheep had exactly the same DNA as wherever else she was cloned. Yet animals with the same DNA do not always express the same genes. For example, identical twins in humans are often quite different in many subtle ways, including their fingertips, brain functions, thought processes and so on.
We have to accept that there are many characteristics which are not necessarily demanded, essentially, by the DNA itself but by other things as well. In particular, one of the things we have not yet discussed is the problem of epigenetics; it does come into the Bill. We know that genes can express in different ways under different environmental conditions. That expression can be altered from the very beginning of conception—that is what we are talking about here—which could be, for example, in vitro fertilisation. Of course, that is mentioned in the Bill.
One of the concerns I have about IVF, having been involved with it since its very beginning, is that we still have no long-term follow up on what it means in terms
of epigenetics—that is, how genes will express in the future. There are many examples where the progeny of a species—for example, a mouse—may show complete changes with regard to obesity, for instance, due to an insult four generations earlier. One has to accept that these changes occur very early; the mothers are fed with fats at the very earliest stages of pregnancy, and four generations later, we see a sex-determined link with obesity in the progeny. These sorts of issues are not teased out here.
Clearly, a great deal of doubt is encompassed in the Bill and in the science of it. As the noble Lord rightly said, we must all have a degree of humility in trying to work out what is best. He and I, and I think most people in this Chamber, would agree that we are mostly concerned about one thing: the environment. We are concerned about climate change and how we might adversely affect our environment. As we will come to later with the release of organisms, one thing that is very clear is that sometimes in the past—with natural causes—organisms have been released into the environment. We can think of the hornet in Britain, the Bufo toad in Australia, or the fungus which causes elm disease in England. Those things have all been produced by simply being involved in our environment, with colossal difficulties. Of course, we do not ultimately know whether this is a problem with modified organisms.
There is one thing which is not discussed here but which we need to consider. What we have forgotten, partly, is evolution. We are trying to evolve a species in one step, and that is a difficulty. If you take the human species, since Homo sapiens was first in east Africa 100,000 years ago, there have probably been about 5,000 families of humans—that is all. We have not evolved very much; the human brain remains very much the same. It takes a very long time for it to change even small amounts. What we are doing here is expecting rapid change for the benefit of ourselves and, we hope, of the planet too, but the problem is that we are dealing with an environment that is constantly balanced and balancing. We are at risk of damaging that balance with so many things that we do, and I regret to say that this is one of the reasons we have to be very careful when we come at the end of the discussion to the problem of balance and, therefore, how we release these organisms into the environment and control that. That is why the Bill is so important.
Without any further ado—I have already spoken for too long—I simply ask permission to withdraw my amendment.